Question Detail

PHY 102 Electromagnetic Induction 2 Objective Question
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Question

Which of the following factors will increase the electromotive force (EMF) induced in a coil?
Options
A Decreasing the number of turns in the coil.
B Decreasing the magnetic field strength surrounding the coil.
C Increasing the speed of the relative motion between the coil and the magnet.
Correct Answer
D Reducing the cross-sectional area of the coil.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 12 lists several ways to increase induced EMF: 'By increasing the number of turns in the coil i.e N... By increasing magnetic field strength i.e B... By increasing the speed of the relative motion between the coil and the magnet'. Option C directly corresponds to one of these methods.

Hint

Think about the parameters in Faraday's Second Law, E = N(dφ/dt), and how to maximize the rate of change of flux.

Question Info

Course: PHY 102
Topic: Electromagnetic Induction 2
Type: Objective
Difficulty: Not specified
Question 729 of 1819
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