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# Electrical Engineering - Inductors

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### Exercise

"Nothing is impossible to a willing heart."
- (Proverb)
1.

An inductance of 0.08 H is larger than

 A. 0.0000008 H B. 0.000000008 H C. 0.000008 H D. 0.00008 mH

2.

A 240 H inductor is equivalent to a

 A. 0.240 mH inductor B. 0.000240 mH inductor C. 240 mH inductor D. 240 H inductor

3.

A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is

 A. 55 mH B. less than 0.2 mH C. less than 5.5 mH D. 5.5 mH

4.

A 5 mH, a 4.3 mH, and a 0.6 mH inductor are connected in parallel. The total inductance is

 A. 9.9 mH B. greater than 5 mH C. 9.9 mH or greater than 5 mH D. less than 0.6 mH

5.

The voltage across a coil when di/dt = 20 mA/s and L = 8 H is

 A. 16 mV B. 160 mV C. 1.6 mV D. 2.5 mV