what is the difference between resistance and resistivity???/
Can You Give Me Some Examples Of Ohmic And Non Ohmic Materials And Please These 2 Terms Also.
No Copy Please Because I Could Search ON Net On Myself Also
Define 1 Coulomb??
give all formula in chapter electricity
two resistors of 10 ohm and 15 ohm are connected in series to a battery of 6V. How can the values of current passing through them be compared?
why is ammeter connected in series and voltmeter in parallel?
Write the chemical name and formula of bleaching powder. How is it prepared
define one coulomb of charge?
a 4 ohm resistance wire is doubled on it calculate the new resistance of the wire
1)HOW MANY ELECTRONS MAKE 10 COULOMB OF CHARGE
what is the difference between an open and closed circuit? (3 points of difference)
Resistance of a metal wire of length 1m is 26 ohm at 20 degree centigrade. If the diameter is 0.3 mm, what is the resistivity?
a conductor carries a current of 0.5 A.find the amount of charge flowing in 40s.and how many electrons are passing per /min through this conductor
Why voltmeter is always connected in parallel combination
what are the applications of Heating effects of electric current . [ joules heating ]
A piece of wire of resistance 20 ohm is drawn out so that its length is increased to twice its original length. Calculate the resistance of the wire in the new situation?
Q1- A refrigerator of capacity 165 litres has a power rating 60 watts. If it runs continously for 5 hours. What unit of electric energy does it convert?
Q2- How many joule are there in one kilowatt-hour? Calculate the cost of operating a 500 watt device for 20 hours at the rate of Rs. 3.59 per unit.
Q3- Which one has a higher resistance 100 watt bulb or a 60 watt bulb each rated at 220 volts?
Q4- A current of 20 amperes is drawn by the starter of a car for 15 seconds. How much electrical energy is drawn from the battery of 12 volts?
Q5- A heater is constructed using a nichrome wire of total resistance 11.00 ohm by applying a potential difference of 220 volts. What is the current drawn by heater? What is power rating of the heater?
Q6- Adomestic consumer uses a refrigerator of 60 watts for 5 hours, an electric iron of 750 watts for half an hour and two 100 watt bulbs for 4 hours everyday. What is the electric energy consumed in a month of 30 days?
define one ohm.
two wires,one of copper and other of manganin, have equal lengths and equal resistances.Which wire is thicker ?Given that resistivity of copper is lower than that of manganin
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