Across a metallic conductor of non uniform cross section, a constant potential difference is applied. The quantity which remains c..
In the circuit shown below, ammeter & voltmeter readings are 3A & 6V. The value of resistance R will be
Consider a copper wire of length L, cross section area A. It has n number of free electrons per unit volume. Which of the followin..
When the current i is flowing through a conductor, the drift velocity is v. If 2i current is followed through the same metal havin..
Resistance of a wire at 20 degree Celsius is 20 Ohm & at 500 degree Celsius is 60 Ohm. At what temperature is its Resistance 25 O..
A material B has twice the specific Resistance of A. A circular wire made of B has twice the diameter of a wire made of A. Having ..
Pick out the wrong feature about carbon resistors
Ohms Law is valid if
Which of the following is a vector quantity
By increasing the temperature, the specific Resistance of a conductor and a semi conductor
Electric field and current density have the relation
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