The point to be kept in mind for verification of Ohm’s law is

The work done in moving a charge of 2 coulomb (C) from point A to point B is 24 J. What is the potential difference between A and B?

Which one of the following is primarily responsible for conduction of current in a metal ?

A current through a horizontal power line flows in east to west direction. What will be the direction of magnetic field at a point directly below it when viewed from east end?

Which of the following metals is used as filament in lighting bulbs?

If three resistors of 1 Ohm each connect in parallel to each other the resultant resistance is