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)

A potential difference V is applied across a conductor of length l and uniform cross-section area A. How will the (i) electric field E, (ii) drift velocity vd, and (iii) current density j be affected when (a) V is doubled and (b) l is halved (keeping other factors constant) ?

The figure shows four pairs of parallel identical conducting plates, separated by the same distance 2.0 cm and arranged perpendicular to x-axis. The electric potential of each plate is mentioned. The electric field between a pair of plates is uniform and normal to the plates.