# Inductors Online Exam Quiz

Important questions about Inductors. Inductors MCQ questions with answers. Inductors exam questions and answers for students and interviews.

### 1. When the current through an inductor decreases, the amount of energy stored in the electromagnetic field

Options

A : increases

B : decreases

C : remains the same

D : doubles

Options

A : 0 V

B : 6 V

C : 12 V

D : 4 V

Options

A : V R ? V L

B : V L < V R

C : V L = V R

D : V L > V R

### 4. A 240 µH inductor is equivalent to a

Options

A : 0.240 mH inductor

B : 0.000240 mH inductor

C : 240 mH inductor

D : 240 H inductor

Options

A : 8 H

B : 32 ?H

C : 64 ?H

D : 248 ?H

### 6. The winding resistance of a coil can be increased by

Options

A : increasing the number of turns

B : using a thinner wire

C : changing the core material

D : increasing the number of turns or using thinner wire

### 7. When the current through an inductor is cut in half, the amount of energy stored in the electromagnetic field

Options

A : is quartered

B : quadruples

C : doubles

D : does not change

Options

A : 43 µH

B : 430 µH

C : 0.05 H

D : 0.00043 H

### 9. A 2 mH, a 3.3 mH, and a 0.2 mH inductor are connected in series. The total inductance is

Options

A : 55 mH

B : less than 0.2 mH

C : less than 5.5 mH

D : 5.5 mH

Options

A : 16 mV

B : 160 mV

C : 1.6 mV

D : 2.5 mV

Options

A : 1.8 mV

B : 18 mV

C : 180 mV

D : 1.25 mV

### 2. An inductance of 0.08 µH is larger than

Options

A : 0.0000008 H

B : 0.000000008 H

C : 0.000008 H

D : 0.00008 mH

### 3. An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is

Options

A : good

B : open

C : shorted

D : partly shorted

Options

A : True

B : False

C :

D :

Options

A : True

B : False

C :

D :

Options

A : True

B : False

C :

D :

Options

A : True

B : False

C :

D :

Options

A : True

B : False

C :

D :

Options

A : True

B : False

C :

D :

Options

A : True

B : False

C :

D :

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