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WHAT IS THE DIFFERENCE BETWEEN AC AND DC CURENT ?
name the material which can be used to make -
notes of magnetic effects of electric current
Explain why, a freely suspended magnet always points in the North-South direction.
About 3-4 mark answer please!
If a magnet is strongly heated, knocked or hammered then its magnetism can be
_ o _ _
WHY DON'T TWO MAGNETIC FIELD LINES INTERSECT EACH OTHER?
As we move away from the wire, concentric circles representing magnetic field lines become bigger, indicating that the strength of the produced magnetic force decreases gradually.
I didn't get this...please explain.
explain different ways to induce current in a coil.
In the figure below, identify the poles marked P and Q as north pole or south Pole. Give reason for your answer.
Explain what is short circuiting and overloading in an electric supply.
Draw a labelled diagram of an electric motor. Explain its principle and working. What is the function of a split ring in an electric motor?
give reason why (i)tungsten is used for making filament of electric lamps; (ii) the elements of heating electrical appliaces are made up of an alloy rather than pure metal
Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?
explain constuction and principle of a.c. generator with diagram?
What is Difference between Short Circuit & overloading?
Please answer it with about 4 points.
A circuit has a fuse of 5A.find the maximum number of 100W 220V lamp that can be used in a circuit.
EXPRESS WORK DONE IN AN ELECTRIC FIELD IN TERMS OF CHARGE AND POTENTIAL DIFFERNCE ? CALCULATE THE AMOUNT OF WORK DONE IN CARRYING A CHARGE OF 5mC AGAINST A POTENTIAL DIFFERENCE OF 100 V??
Magnetic field is scalar or vector quantity ? Give reasons for your answer.
state and explain properly maxwell right hand thumb rule
List the factors on which the magnetic field produced by a current carrying straight conductor depends ? State the rule which gives the direction of its magnetic field. Draw the pattern of magnetic field lines due to a straight current carrying conductor.
(a) Describe an activity to demonstrate the pattern of magnetic field lines around a straight conductor carrying current. (b) State the rule to find the direction of magnetic field associated with a current carrying conductor. (c) What is the shape of a current carrying conductor whose magnetic field pattern resembles that of a bar-magnet ?
difference between a bar magnet and an electro magnet
What is the function of brushes in electric generator?
Knowing the direction of current , how will you determine the side on which the north pole is formed in an electromagnet ?
List two methods of producing magnetic fields.
positive terminal of battery is north pole or south pole
What is meant by overloading of an electrical circuit ? Explain two possible causes due to which overloading may occur in household circuit ? Explain one precaution that should be taken to avoid the overloading of domestic electric circuit.
What is role of split ring in an electric motor ?
1. Write down the preparation, 2 properties and 2 uses for the following :-(a) Washing soda.(b) Baking soda.(c) Bleaching powder.(d) Plaster of paris.2. Why does a transformer not work in DC?
is there a magnetic field produced around a thin beam of moving 1)alpha particles , 2)neutrons? justify your answer
please explain this sentence - the direction of magnetic field is taken to be the direction in which a north pole of the compass needle moves inside it .
Q2. The magnetic field lines in a given region is uniform. Draw a diagram to represent them. Write two ways to induce current in a coil?
i have not understood fleming's Left Hand Rule and Right hand thumb rule please explain
what is the disadvantage of short circuit
kindly suggest any science working model project for physics or chemistry class X...thanx
coil?
Which of the following property of a proton can change while it moves freely in a magnetic field? (Mass, speed, velocity, momentum) Please answer soon.........
Explain why a copper wire can not be used as a fuse wire?
Plzz can anyone explain me the activity 13.9 in NCERT text science in chapter.... Magnetic effects of electric current.
How does a solenoid behave like a magnet? Can you determine the north and south poles of a current-carrying solenoid with the help of a bar magnet? Explain.
13. Draw the pattern of magnetic field lines of a current carrying circular loop. What does the
what is the difference between A.C. generator and D.C. generator as well as A.C motor A.C motor????
is it possible that magnetic field emerging out of north pole of one bar magnet can enter the south pole of another magnet
what is the principle of the electric motor?
Difference between fleming's left hand rule and right hand rule?where to apply left hand rule and where to apply right hand rule?
state 2 ways by which the strength of an electromagnet can be increased.what type of core is used to make an electromagnet?state 3 differences btwn the electromagnet and permanent,
what is meant by length of air gap between electromagnetic poles
Why does a current carrying conductor kept in a magnetic field experience force? On what factor does the direction of this force depend? Name and state the rule used determination of direction of current
WHAT IS THE PRINCIPLE OF THE ELECTRIC GENERATOR ???
how fleming's right hand rule is used to find the induced current in AC Generator ?
Explain the function of fuse in a domestic circuit?
how to make a science model using waste materials available at home
MERITNAtION!....pls show how the direction of magnetic field is clockwise wen it flows from east to west wid d hlp of video or proper diagram?????........by applying maxwlls thumb rule i find it to be anticlock wise!
consider a circular loop of wire lying in the plane of the table let the current pass through the loop clockwise apply the right hand rule to find out the direction of magnetic field inside and outside the loop?
A current through a horizontal power line flows in east to west direction.What is the direction of magnetic field line at a point directly below it?How to do this.I cant understand the text book solution plsss someone help!!
why v use Flaming's left hand and right hand rules . why not the same say left or right hand rule can't be used when three terms i.e. direction of field, current and force are same
what is the function of slip rings in ac generator?
An AC generator can be converted into a DCgenerator by replacing(1) Its armature with a coil(2) Its concave magnets(3) Its slip rings with split rings(4) Two brushes with four brushes
compare the magnetic field pattern due to a current carrying solenoid with that of a bar magnet
state flemings left hand rule
what is ampere's swimming rule??
Q6.State three factor on which magnetic field produced by a current carrying solenoid depends.
What is clock face rule?
why like poles repel each other and unlike poles attract each other and why not like poles attract each other
why does a current carrying conductor kept in magnetic field experience force ?
what are the uses of magnets in medical field?
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Syllabus
WHAT IS THE DIFFERENCE BETWEEN AC AND DC CURENT ?
name the material which can be used to make -
notes of magnetic effects of electric current
Explain why, a freely suspended magnet always points in the North-South direction.
About 3-4 mark answer please!
If a magnet is strongly heated, knocked or hammered then its magnetism can be
_ o _ _
WHY DON'T TWO MAGNETIC FIELD LINES INTERSECT EACH OTHER?
As we move away from the wire, concentric circles representing magnetic field lines become bigger, indicating that the strength of the produced magnetic force decreases gradually.
I didn't get this...please explain.
explain different ways to induce current in a coil.
In the figure below, identify the poles marked P and Q as north pole or south Pole. Give reason for your answer.
Explain what is short circuiting and overloading in an electric supply.
Draw a labelled diagram of an electric motor. Explain its principle and working. What is the function of a split ring in an electric motor?
give reason why (i)tungsten is used for making filament of electric lamps; (ii) the elements of heating electrical appliaces are made up of an alloy rather than pure metal
Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?
explain constuction and principle of a.c. generator with diagram?
Plzz answer as soon as possible.
What is Difference between Short Circuit & overloading?
Please answer it with about 4 points.
Give 5 pts in tabular form only ?
A circuit has a fuse of 5A.find the maximum number of 100W 220V lamp that can be used in a circuit.
EXPRESS WORK DONE IN AN ELECTRIC FIELD IN TERMS OF CHARGE AND POTENTIAL DIFFERNCE ? CALCULATE THE AMOUNT OF WORK DONE IN CARRYING A CHARGE OF 5mC AGAINST A POTENTIAL DIFFERENCE OF 100 V??
Magnetic field is scalar or vector quantity ? Give reasons for your answer.
state and explain properly maxwell right hand thumb rule
List the factors on which the magnetic field produced by a current carrying straight conductor depends ? State the rule which gives the direction of its magnetic field. Draw the pattern of magnetic field lines due to a straight current carrying conductor.
(a) Describe an activity to demonstrate the pattern of magnetic field lines around a straight conductor carrying current. (b) State the rule to find the direction of magnetic field associated with a current carrying conductor. (c) What is the shape of a current carrying conductor whose magnetic field pattern resembles that of a bar-magnet ?
difference between a bar magnet and an electro magnet
What is the function of brushes in electric generator?
Knowing the direction of current , how will you determine the side on which the north pole is formed in an electromagnet ?
List two methods of producing magnetic fields.
positive terminal of battery is north pole or south pole
What is meant by overloading of an electrical circuit ? Explain two possible causes due to which overloading may occur in household circuit ? Explain one precaution that should be taken to avoid the overloading of domestic electric circuit.
What is role of split ring in an electric motor ?
1. Write down the preparation, 2 properties and 2 uses for the following :-
(a) Washing soda.
(b) Baking soda.
(c) Bleaching powder.
(d) Plaster of paris.
2. Why does a transformer not work in DC?
is there a magnetic field produced around a thin beam of moving 1)alpha particles , 2)neutrons? justify your answer
please explain this sentence - the direction of magnetic field is taken to be the direction in which a north pole of the compass needle moves inside it .
Q2. The magnetic field lines in a given region is uniform. Draw a diagram to represent them. Write two ways to induce current in a coil?
i have not understood fleming's Left Hand Rule and Right hand thumb rule please explain
what is the disadvantage of short circuit
kindly suggest any science working model project for physics or chemistry class X...thanx
coil?
Which of the following property of a proton can change while it moves freely in a magnetic field? (Mass, speed, velocity, momentum) Please answer soon.........
a) Steel
b) Cobalt
c) Brass
d) Nickel
Explain why a copper wire can not be used as a fuse wire?
Plzz can anyone explain me the activity 13.9 in NCERT text science in chapter.... Magnetic effects of electric current.
How does a solenoid behave like a magnet? Can you determine the north and south poles of a current-carrying solenoid with the help of a bar magnet? Explain.
13. Draw the pattern of magnetic field lines of a current carrying circular loop. What does the
pattern of field lines inside the circular loop indicate? On what factor does the strength of themagnetic field in a circular coil depends?what is the difference between A.C. generator and D.C. generator as well as A.C motor A.C motor????
is it possible that magnetic field emerging out of north pole of one bar magnet can enter the south pole of another magnet
what is the principle of the electric motor?
nected to a sensitive galvanometer, is moved up
and down in a strong magnetic field.
(i) State your observations.
(ii) What is the nature of induced current gener-
ated in the conductor?
(iii) What kind of energy transformations take
place in the above experiment?
Difference between fleming's left hand rule and right hand rule?where to apply left hand rule and where to apply right hand rule?
state 2 ways by which the strength of an electromagnet can be increased.what type of core is used to make an electromagnet?state 3 differences btwn the electromagnet and permanent,
what is meant by length of air gap between electromagnetic poles
Why does a current carrying conductor kept in a magnetic field experience force? On what factor does the direction of this force depend? Name and state the rule used determination of direction of current
WHAT IS THE PRINCIPLE OF THE ELECTRIC GENERATOR ???
how fleming's right hand rule is used to find the induced current in AC Generator ?
Explain the function of fuse in a domestic circuit?
how to make a science model using waste materials available at home
MERITNAtION!....pls show how the direction of magnetic field is clockwise wen it flows from east to west wid d hlp of video or proper diagram?????........by applying maxwlls thumb rule i find it to be anticlock wise!
consider a circular loop of wire lying in the plane of the table let the current pass through the loop clockwise apply the right hand rule to find out the direction of magnetic field inside and outside the loop?
A current through a horizontal power line flows in east to west direction.What is the direction of magnetic field line at a point directly below it?How to do this.I cant understand the text book solution plsss someone help!!
why v use Flaming's left hand and right hand rules . why not the same say left or right hand rule can't be used when three terms i.e. direction of field, current and force are same
1. Circular
2.ellipse
3.parabolic
4.straight line
what is the function of slip rings in ac generator?
An AC generator can be converted into a DC
generator by replacing
(1) Its armature with a coil
(2) Its concave magnets
(3) Its slip rings with split rings
(4) Two brushes with four brushes
compare the magnetic field pattern due to a current carrying solenoid with that of a bar magnet
state flemings left hand rule
what is ampere's swimming rule??
Q6.State three factor on which magnetic field produced by a current carrying solenoid depends.
What is clock face rule?
why like poles repel each other and unlike poles attract each other and why not like poles attract each other
why does a current carrying conductor kept in magnetic field experience force ?
what are the uses of magnets in medical field?