MediumNEET TEST
+4 / -1
The magnetic flux (ϕ) linked with a coil varies with time (t) according to the equation: ϕ = t²(2t + 3) milli-webers. Find the magnitude of the induced EMF at t = 1 second.
A
10 mV
B
20 mV
C
40 mV
D
80 mV
Explanation
e = dϕ/dt ⇒ 40 mV.
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