Question Detail

PHY 102 Electromagnetic Induction 1 Objective Question

Question

While both Faraday's Law and Lenz's Law describe electromagnetic induction, what distinct aspect is primarily provided by Lenz's Law?
Options
A The magnitude of the induced electromotive force (emf).
B The direction of the induced current or emf.
Correct Answer
C The total magnetic flux through a circuit.
D The total resistance of the circuit.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Slide 9 states: 'Faraday's law gives the direction of the induced emf and therefore the direction of any induced current. Lenz's law is a simple way to get the directions straight, with less effort.' While Faraday's law includes a negative sign indicating direction, Lenz's law is explicitly framed as the method for determining direction.

Hint

Think about the main purpose or contribution of each law, particularly regarding the vector nature of induced phenomena.

Question Info