A Va Vb B Va Vb C First VaVb D First VaVb then Va Vb E Va

Solution

as in magnet magnetic field lines is taken to be outward fron north pole and in to the south pole, so as it move away from the coil, Induced magnetic field strength is decreased so by Lenz law, the coil has tendency to increase the magnetic field that leads to flow of current from a to b across the resistor.

appling loop law in the circuit :

Va - iR = Vb

só, Vá - Vb = iR

so hence E) Va > Vb