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Rachit Yadav
Subject: Physics
, asked 22 hours, 8 minutes ago
What is Conventional current?
Answer
1
Ujjwal Kumar
Subject: Physics
, asked 1 day, 20 hours ago
Please share the solution for this question experts
Answer
1
Liyana Amin
Subject: Physics
, asked 2 days, 6 hours ago
Experts pls answer..
Answer
1
Johann Premjith
Subject: Physics
, asked 2 days, 18 hours ago
AB is a current carrying conductor in the plane of the paper as shown in the figure. What are the directions of the magnetic field produced by
it at points P and Q? Given r
_{1}
> r
_{2}
, where will be the strength of magnetic field be larger?
Answer
2
Deepesh Bhardwaj
Subject: Physics
, asked 2 days, 20 hours ago
X=3?10^-9 Y=11.1?0^-6 Z=18?10^-17
Answer
1
Liyana Amin
Subject: Physics
, asked 3 days, 8 hours ago
Pls answer this
Given n resistors each of resistance 'R'. How will you combine them to get the (i) maximum (ii) minimum effective resistance? What is the ratio of the maximum to minimum resistance?
Answer
6
Deepesh Bhardwaj
Subject: Physics
, asked 3 days, 9 hours ago
Please answer answer the question based on chapter electricity pls hlp
Answer
1
Deepesh Bhardwaj
Subject: Physics
, asked 3 days, 9 hours ago
Please answer answer the question based on chapter electricity
Answer
1
Liyana Amin
Subject: Physics
, asked 3 days, 19 hours ago
Experts please answer
A wire is connected between the point P and Q in circuit to carry a current I .if it is replaced by a wire of same length and half thickness. how will the current vary?
THANK YOU
Answer
1
Shubh Soumya
Subject: Physics
, asked 4 days, 20 hours ago
Is 9.8x 10??? c charge possible on a body?
Answer
1
Liyana Amin
Subject: Physics
, asked 6 days, 12 hours ago
Experts please answer...
Question 1
Draw a circuit diagram showing a cell, a bulb and a closed switch.
Question 2
??????????????a)??How much work is done in moving a charge of 3 coulumb from a point at the volts 115 to a point at 125 volts?
??????????????b)??Ammeter burns out when connected in parallel. Give reasons.
Question 3
Given n resistors each of resistors Rs. How will you combine them to get the (i) maximum and (ii) minimum effective resistance? What is the ratio of the maximum to minimum resistance?
Question 4
a) A wire of length L and resistance R is stretched so that its length it?s doubled. How will the: (a) Resistance change(b) Resistivity change?
??????????????b)??In an experiment the current flowing through a resistor and potential difference across it are measured. The values are given below. Show that these values confirm Ohm?s Law
??????????????I (ampere) 1.0 1.0 2 1.5 2.0 2.0 2.5 2.5 3.0 3.0
??????????????V (volt) 4.0 4.0 6.0 6.0 8.0 8.0 10.0 10.0 12.0 12.0
Question 5
a) A tube light draws 0.1 A current from a 220 V supply. What current will this tube light draw when it is connected to a 110 V supply?
b) An electric wire is stretched to increase its length by 25%.By what % will the resistance be increased and what will be increase in its resistivity?
Thank you so much! :)
Answer
6
Ujjwal Kumar
Subject: Physics
, asked 6 days, 17 hours ago
Please solve this question experts...
Answer
2
Liyana Amin
Subject: Physics
, asked 1 week, 1 day ago
Experts please answer...
(a) The electric power consumed by a device may be calculated by using either of the two expressions P = 12R or P =V2/R . The first expression indicates that it is directly proportional to R whereas the second expression indicates inverse proportionality. How can the seemingly different dependence of P on R in these expressions be explained?
(b)??(i) A 100 W electric bulb is connected to 220 V mains power supply. Calculate the strength of the electric current passing through the bulb. (ii) If the same bulb is taken to U.S.A where the main power supply is 110 V, how much electric current will pass through the bulb when connected to mains?
Thank you! :)
Answer
1
Fasiha Fatima
Subject: Physics
, asked 1 week, 1 day ago
What is the power of a convex mirror whose focal length is 25 cm?
Answer
2
Yashvi Savalia
Subject: Physics
, asked 1 week, 1 day ago
Is 9.8 ? 10^-12 coulomb charge is possible on a body?
Answer
2
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What are you looking for?

_{1}> r_{2}, where will be the strength of magnetic field be larger?Given n resistors each of resistance 'R'. How will you combine them to get the (i) maximum (ii) minimum effective resistance? What is the ratio of the maximum to minimum resistance?

A wire is connected between the point P and Q in circuit to carry a current I .if it is replaced by a wire of same length and half thickness. how will the current vary?

THANK YOU

Question 1

Draw a circuit diagram showing a cell, a bulb and a closed switch.

Question 2

??????????????a)??How much work is done in moving a charge of 3 coulumb from a point at the volts 115 to a point at 125 volts?

??????????????b)??Ammeter burns out when connected in parallel. Give reasons.

Question 3

Given n resistors each of resistors Rs. How will you combine them to get the (i) maximum and (ii) minimum effective resistance? What is the ratio of the maximum to minimum resistance?

Question 4

a) A wire of length L and resistance R is stretched so that its length it?s doubled. How will the: (a) Resistance change(b) Resistivity change?

??????????????b)??In an experiment the current flowing through a resistor and potential difference across it are measured. The values are given below. Show that these values confirm Ohm?s Law

??????????????I (ampere) 1.0 1.0 2 1.5 2.0 2.0 2.5 2.5 3.0 3.0

??????????????V (volt) 4.0 4.0 6.0 6.0 8.0 8.0 10.0 10.0 12.0 12.0

Question 5

a) A tube light draws 0.1 A current from a 220 V supply. What current will this tube light draw when it is connected to a 110 V supply?

b) An electric wire is stretched to increase its length by 25%.By what % will the resistance be increased and what will be increase in its resistivity?

Thank you so much! :)

(a) The electric power consumed by a device may be calculated by using either of the two expressions P = 12R or P =V2/R . The first expression indicates that it is directly proportional to R whereas the second expression indicates inverse proportionality. How can the seemingly different dependence of P on R in these expressions be explained?

(b)??(i) A 100 W electric bulb is connected to 220 V mains power supply. Calculate the strength of the electric current passing through the bulb. (ii) If the same bulb is taken to U.S.A where the main power supply is 110 V, how much electric current will pass through the bulb when connected to mains?

Thank you! :)