EMF or time from mutual inductance and the change in current

1. A.
   $3 \times 10^{-3}$ s
2. B.
   $3 \times 10^{-2}$ s
3. C.
   $6 \times 10^{-3}$ s
4. D.
   $3 \times 10^{-2}$ s

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1. A.
   $\frac{MI}{t}$
2. B.
   $\frac{NMI}{t}$
3. C.
   $\frac{NM}{It}$
4. D.
   $\frac{MI}{Nt}$

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1. A.
   $4 \times 10^{- 3}\text{ }s$
2. B.
   $6 \times 10^{- 3}\text{ }s$
3. C.
   $2 \times 10^{- 3}\text{ }s$
4. D.
   $3 \times 10^{- 3}\text{ }s$

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1. A.
   $3.75 \times 10^{-3}$ s
2. B.
   $2.5 \times 10^{-3}$ s
3. C.
   $4.5 \times 10^{-3}$ s
4. D.
   $3.5 \times 10^{-3}$ s

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