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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