Question Detail

PHY 102 Electromagnetic Induction 1 Objective Question

Question

Can an induced electric field exist in the absence of a conductor?
Options
A No, an induced electric field requires a conductor to be present for its formation.
B Yes, the field does not depend on the presence of the conductor.
Correct Answer
C Only if the magnetic field is static.
D Only if the magnetic field is extremely strong.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 31 asks, 'Now suppose there is no conductor: Is there still an electric field?' and answers, 'YES! The field does not depend on the presence of the conductor.' The changing magnetic field itself generates the electric field, regardless of whether there's charge to interact with it.

Hint

The cause of the induced electric field is the changing magnetic field, not the presence of a medium.

Question Info