When a bar magnet is thrust at the same speed into a coil having twice the number of loops,the induced voltage is

Question

Quizplus · Accepted Answer

According to Faraday's Law, the induced voltage is proportional to the rate of change of magnetic flux linking the coil. When a bar magnet is thrust into a coil, the magnetic flux linking the coil changes. As the number of loops in the coil is doubled, the amount of magnetic flux linking the coil also doubles. Therefore, the rate of change of magnetic flux also doubles, and hence the induced voltage is twice as much as before.

When a Bar Magnet Is Thrust at the Same Speed