Electricity magnetism and optics all previous/ past question papers

Q1:

Find Electric Field due to dipole?

Q2:

How much electronic charge required to make 1 coulomb?

Q3:

The distance between two parallel wires carrying currents of 10 A and 20 A is 10 cm. Determine the magnitude and direction of the magnetic force acting on the length of 1 m of wires, if the currents are carried in the opposite direction?

Q4:

Find potential due to a point charge?

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