# Inductors - General Questions Online Exam Quiz

Inductors - General Questions GK Quiz. Question and Answers related to Inductors - General Questions. MCQ (Multiple Choice Questions with answers about Inductors - General Questions

### An inductance of 0.08 H is larger than

**Options**

A : 0.0000008 H

B : 0.000000008 H

C : 0.000008 H

D : 0.00008 mH

### A 240 H inductor is equivalent to a

**Options**

A : 0.240 mH inductor

B : 0.000240 mH inductor

C : 240 mH inductor

D : 240 H inductor

### 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

### A 5 mH, a 4.3 mH, and a 0.6 mH inductor are connected in parallel. The total inductance is

**Options**

A : 9.9 mH

B : greater than 5 mH

C : 9.9 mH or greater than 5 mH

D : less than 0.6 mH

### The voltage across a coil when di/dt = 20 mA/ s and L = 8 H is

**Options**

A : 16 mV

B : 160 mV

C : 1.6 mV

D : 2.5 mV

### A sine wave voltage is applied across an inductor. When the frequency of the voltage is decreased, the current

**Options**

A : is increased

B : is decreased

C : does not change

D : momentarily goes to zero

### Two 10 H inductors are in parallel and the parallel combination is in series with a third 10 H inductor. What is the approximate total reactance when a voltage with a frequency of 7 kHz is applied across the circuit terminals?

**Options**

A : 219 k

B : 66 k

C : 660 k

D : 1.3 M

### 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

### Two inductors, L 1 and L 2 , are in parallel. L 1 has a value of 25 H and L 2 a value of 50 H. The parallel combination is in series with L 3 , a 20 H coil. The entire combination is across an ac source of 60 V r m s at 300 kHz. The total rms current is

**Options**

A : 87 mA

B : 870 mA

C : 87 A

D : 337 mA

### An inductor, a 1 k resistor, and a switch are connected in series across a 6 V battery. At the instant the switch is closed, the inductor voltage is

**Options**

A : 0 V

B : 6 V

C : 12 V

D : 4 V

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