Inductors - General Questions (11)

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Inductors - General Questions

81.

Faraday's law states that the:

A.	direction of the induced voltage produces an opposition
B.	direction of an induced current produces an aiding effect
C.	emf depends on the rate of cutting flux
D.	emf is related to the direction of the current

Answer: Option C

Explanation:

No answer description available for this question

82.

On a schematic, dashed lines between two vertical coils usually mean the transformer has:

A.	an air core
B.	an iron core
C.	a nonmetallic core
D.	a ferrite core

Answer: Option D

Explanation:

No answer description available for this question

83.

mcq11_1004_1

What is the total inductance in the given circuit?

A.	160 mH
B.	300 mH
C.	900 mH
D.	1700 mH

Answer: Option A

Explanation:

No answer description available for this question

84.

A series RL filter circuit with an output across the inductor will result in what type of filtering?

A.	passing of the higher frequencies
B.	passing of the lower frequencies
C.	blocking of the higher frequencies
D.	blocking of a certain range of frequencies

Answer: Option A

Explanation:

No answer description available for this question.

85.

In a purely inductive circuit,

A.	current leads voltage by 90Â°
B.	voltage lags current by 90Â°
C.	voltage leads current by 90Â°
D.	current

Answer: Option C

Explanation:

No answer description available for this question

86.

What is hysteresis?

A.	lead between cause and effect
B.	lag between cause and effect
C.	lead between voltage and current
D.	lag between voltage and current

Answer: Option B

Explanation:

No answer description available for this question

87.

What type of device consists of a coil with a moveable iron core?

A.	solenoid
B.	reed switch
C.	relay
D.	armature

Answer: Option A

Explanation:

No answer description available for this question

88.

As current travels within a conductor:

A.	the magnetic field aids the current
B.	a magnetic field is developed around it
C.	the wire tries to point north
D.	an electrostatic field opposes the current

Answer: Option B

Explanation:

No answer description available for this question

Inductors - General Questions (11)

Inductors - General Questions

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