Question

The electric field in a region is given by E→ = (10x + 4) î where x is in m and E is in N/C. Calculate the amount of work done in taking a unit charge from (i) (5 m, 0) to (10 m, 0) (ii) (5 m, 0) to (5 m, 10 m)

Two particles A and B of the same mass but having charges q and 4q respectively, are accelerated from rest through different potential differences VA and VB such that they attain same kinetic energies. The value of (VA/VB) is :

Assertion (A): Work done in moving a charge around a closed path, in an electric field is always zero. Reason (R): Electrostatic force is a conservative force.

Define electric flux and write its SI unit.