# Electronics - Inductors

### Exercise :: Inductors - General Questions

36.

How long until the current is at a maximum?

 A. 0 s B. 5 s C. 15 s D. 25 s

Answer: Option B

Explanation:

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37.

Find VR and VL.

 A. VR = 41.6 V, VL = 78.4 V B. VR = 48 V, VL = 110 V C. VR = 56 V, VL = 106 V D. VR = 60 V, VL = 60 V

Answer: Option C

Explanation:

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38.

If 360 Vac is the output of a 300-turn secondary winding, what is the input voltage when the primary winding has 150 turns?

 A. 2.4 Vac B. 150 Vac C. 180 Vac D. 720 Vac

Answer: Option C

Explanation:

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39.

When a magnet enters a coil and a voltage is induced, the process is known as:

 A. an alternation B. self-inductance C. counter emf D. flux linkage

Answer: Option D

Explanation:

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40.

What term is used to describe the action of magnetic flux from one circuit that cuts across the conductors of another circuit?

 A. self-inductance B. rectification C. mutual inductance D. magnetism

Answer: Option C

Explanation:

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41.

Reactance in an inductive circuit will:

 A. increase with frequency B. decrease with frequency C. be independent from frequency D. depend on the value of XC

Answer: Option A

Explanation:

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42.

A turns ratio of 5 for a transformer implies:

 A. more primary turns than secondary turns B. more secondary current than primary current C. larger source impedance than load impedance D. more secondary turns than primary turns

Answer: Option D

Explanation:

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