Question Detail

PHY 102 Electromagnetic Induction 1 Objective Question

Question

According to the document, under what conditions is the integral form of magnetic flux (ΦB = ∫ B ⋅ dA) necessary to calculate the total magnetic flux?
Options
A Only when the magnetic field B is constant but the surface area A is irregular.
B Only when the magnetic field B is non-constant across the surface.
C When the magnetic field B is non-constant, or the surface is not flat.
Correct Answer
D Only when the magnetic field B is uniform and the surface is flat.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Slide 7 states: 'When B is not constant, or the surface is not flat, one must do an integral.' This indicates that the integral form is required under either of these conditions.

Hint

Refer to the section on 'Magnetic Flux' and when the integral form is introduced.

Question Info