Inductors - General Questions (6)

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Inductors - General Questions

41.

Opposition to current flow without the dissipation of energy is called:

A.	resistance
B.	inductive reactance
C.	counter emf
D.	impedance

Answer: Option B

Explanation:

No answer description available for this question

42.

The output phase for a transformer is:

A.	in phase with the input
B.	out of phase with the input
C.	dependent on the direction of the primary and secondary windings
D.	dependent on the frequency of the primary source

Answer: Option C

Explanation:

No answer description available for this question.

43.

If you wanted to decrease the inductance of a coil, you might increase the:

A.	number of turns
B.	permeability of the core
C.	spacing between turns
D.	area of the coil

Answer: Option C

Explanation:

No answer description available for this question

44.

When a rate of one ampere per second causes an induced voltage of one volt, the unit of measure is

A.	a lenz
B.	an ohm
C.	a farad
D.	a henry

Answer: Option D

Explanation:

No answer description available for this question

45.

When a coil collapses the induced circuit current will:

A.	be in the same direction
B.	go to zero
C.	aid counter emf buildup
D.	be in the opposite direction

Answer: Option A

Explanation:

No answer description available for this question

46.

What is the inductive reactance?

mcq8_1033_1

A.	5.2 o
B.	7.5 o
C.	1.3 k
D.	7.5 k

Answer: Option D

Explanation:

No answer description available for this question.

47.

A utility pole transformer used to supply a residential customer with two phases uses:

A.	two phases on the primary
B.	a center tap on the secondary
C.	a separate ground for each phase
D.	a small coefficient of coupling

Answer: Option B

Explanation:

No answer description available for this question

48.

What is the approximate time for a complete decay of 400 mA of inductor current, when R = 10 ohms and L = 20 H?

A.	10 seconds
B.	8 seconds
C.	4 seconds
D.	2 seconds

Answer: Option A

Explanation:

No answer description available for this question

Inductors - General Questions (6)

Inductors - General Questions

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