Inductors - General Questions (5)

Directions to Solve

Inductors - General Questions

33.

Which of the following is NOT one of the three major types of fixed inductor?

A.	air core
B.	ferrite core
C.	magnesium core
D.	iron core

Answer: Option C

Explanation:

No answer description available for this question

34.

A transformer is used:

A.	to couple electric energy from one dc circuit to another
B.	to couple electric energy from an ac circuit to a dc circuit
C.	to couple electric energy from a dc circuit to an ac circuit
D.	to couple electric energy from one ac circuit to another

Answer: Option D

Explanation:

No answer description available for this question

35.

What is the total inductance of a 5 H and a 100 mH coil connected in parallel?

A.	4.76 mH
B.	33.3 mH
C.	98.0 mH
D.	150.0 mH

Answer: Option C

Explanation:

No answer description available for this question

36.

What is the current rise after 2 time constants if V_s = 12 V dc, R = 60 , and the inductor is rated at 24 mH?

A.	79.9 mA
B.	126.4 mA
C.	173.0 mA
D.	198.6 mA

Answer: Option C

Explanation:

No answer description available for this question

37.

When the transformer secondary is not loaded:

A.	secondary voltage increases
B.	no secondary current flows
C.	no secondary voltage is present
D.	secondary current increases

Answer: Option B

Explanation:

No answer description available for this question

38.

Find I_R and I_L.

mcq8_1035_1

A.	IR = 50 mA, IL = 109 mA
B.	IR = 150 mA, IL = 9 mA
C.	IR = 50 mA, IL = 151 mA
D.	IR = 150 mA, IL = 53 mA

Answer: Option D

Explanation:

No answer description available for this question.

39.

Which coil would be used as a step-up transformer primary if coil number 1 has 100 more turns than coil number 2?

A.	The coil windings must be the same.
B.	coil 1
C.	The coil ratio is too small.
D.	coil 2

Answer: Option D

Explanation:

No answer description available for this question

40.

With 100 V_ac applied to the primary of a transformer so that it draws 500 mA, what will be the 300 V_ac secondary current?

A.	1500 mA
B.	200 mA
C.	167 mA
D.	150 mA

Answer: Option C

Explanation:

No answer description available for this question

Inductors - General Questions (5)

Inductors - General Questions

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