The magnetic flux through a coil changes steadily from 4.0 × 10^-5 T ∙ m² to 5.0 × 10^-5 T ∙ m² in 0.10 s.What emf is induced in this coil? A)5.0 × 10^-4 V B)4.0 × 10^-4 V C)1.0 × 10^-4 V D)None of the given answers are correct.

Question

Quizplus · Accepted Answer

The induced emf (ε) in a coil due to a change in magnetic flux (ΔΦ) over a time interval (Δt) is given by Faraday's law of electromagnetic induction, ε = -ΔΦ/Δt. Here, ΔΦ = 5.0 × 10^-5 T∙m^2 - 4.0 × 10^-5 T∙m^2 = 1.0 × 10^-5 T∙m^2, and Δt = 0.10 s. Thus, ε = (1.0 × 10^-5 T∙m^2) / (0.10 s) = 1.0 × 10^-4 V.

The Magnetic Flux Through a Coil Changes Steadily from 4