alleryFaraday's law of induction states:
AEMF = − dΦ/dt
BEMF = − dΦ × dt
CEMF = Φ / dt
DEMF = − dt / dΦ
Answer & Solution
Correct answer: A. EMF = − dΦ/dt
1. EMF induced in a circuit = − dΦ/dt, where Φ is the magnetic flux through the circuit.
2. The minus sign encodes Lenz's law (direction).
3. Flux Φ = ∫ B · dA.
_Source: syllabus Physics Ch 6 §6.4 Faraday's Law_
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