APFIVE Induced EMF in a Solenoid
A solenoid with 1000 turns and a cross-sectional area of $$2.0 \times 10^{-4}$$ m² is placed in a region where the magnetic field is given by $$B(t) = (0.30\ \text{T})e^{-t/\tau}$$, where $$\tau = 0.20\ \text{s}$$. What is the magnitude of the induced emf at $$t = 0.10\ \text{s}$$?
A
0.14 V
B
0.54 V
C
0.18 V
D
0.41 V
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