Question

if the speed of the magnet is doubled, the induced voltage is

When a magnet is plunged into a coil at speed v, as shown in the figure, a voltage is induced in the coil and a current flows in the circuit.(Figure 1)

Part A

If the speed of the magnet is doubled, the induced voltage is ________ .

a.) twice as great

b.) four times as great

c.) half as great

d.) unchanged