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Two coils have a mutual inductance $M = 0.005 \text{ H}$. If the current in the primary coil changes from $I_1 = 5 \text{ A}$ to $I_2 = 2 \text{ A}$ in $\Delta t = 0.01 \text{ s}$, what is the induced EMF $\varepsilon$ in the secondary coil?
- A.$1.5 \text{ V}$
- B.$0.5 \text{ V}$
- C.$2.5 \text{ V}$
- D.$1.0 \text{ V}$
Show correct answer & step-by-step solution
Correct answer: A — $1.5 \text{ V}$
Solution
The induced EMF is .
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