Inductors - General Questions (3)

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Inductors - General Questions

17.

Two 10 H inductors are in parallel and the parallel combination is in series with a third 10 H inductor. What is the approximate total reactance when a voltage with a frequency of 7 kHz is applied across the circuit terminals?

A.	219 kΩ
B.	66 kΩ
C.	660 kΩ
D.	1.3 MΩ

Answer: Option C

Explanation:

No answer description available for this question.

18.

A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current

A.	is increased
B.	is decreased
C.	does not change
D.	momentarily goes to zero

Answer: Option A

Explanation:

No answer description available for this question.

19.

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

Answer: Option B

Explanation:

No answer description available for this question.

20.

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

Answer: Option D

Explanation:

No answer description available for this question.

21.

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

Answer: Option D

Explanation:

No answer description available for this question.

22.

A 240 H inductor is equivalent to a

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

Answer: Option A

Explanation:

No answer description available for this question.

23.

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

Answer: Option B

Explanation:

No answer description available for this question.

Inductors - General Questions (3)

Inductors - General Questions

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