Energy stored in an inductor (half L I squared)

1. A.
   10 mJ
2. B.
   5 mJ
3. C.
   $10\,\mu J$
4. D.
   $5\,\mu J$

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1. A.
   0.20 H
2. B.
   2.0 H
3. C.
   20 H
4. D.
   200 H

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1. A.
   4 times
2. B.
   2 times
3. C.
   half times
4. D.
   $\frac{1}{4}$th times

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1. A.
   1.2 J
2. B.
   2.4 J
3. C.
   24 J
4. D.
   240 J

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1. A.
   0.025 J
2. B.
   0.050 J
3. C.
   0.075 J
4. D.
   0.100 J

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1. A.
   0.0333
2. B.
   0.0667
3. C.
   0.0726
4. D.
   0.0984

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1. A.
   $\frac{1}{2}{LI}^{2}$
2. B.
   $\ \frac{3}{2}{LI}^{2}$
3. C.
   $\frac{5}{2}{LI}^{2}$
4. D.
   $\ \frac{7}{2}{LI}^{2}$

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1. A.
   800
2. B.
   1000
3. C.
   1200
4. D.
   1400

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1. A.
   $0.20$ H
2. B.
   $2.0$ H
3. C.
   $20$ H
4. D.
   $200$ H

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1. A.
   $1.2$ J
2. B.
   $2.4$ J
3. C.
   $24$ J
4. D.
   $240$ J

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1. A.
   $4.5$ mJ
2. B.
   $3\ \mu\mathrm{J}$
3. C.
   $45\ \mu\mathrm{J}$
4. D.
   $4500$ mJ

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1. A.
   $437.5$ J
2. B.
   $740$ J
3. C.
   $6375$ J
4. D.
   $540$ J

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