Displacement Current NEET Questions

Physics - Electromagnetic Waves

Displacement Current MCQ Questions


13.
Which field gives rise to displacement current?
A.
Electric field
B.
Magnetic field
C.
Changing electric field
D.
Static electric field
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ANSWER :
B. Magnetic field
14.
In an oscillating LC circuit, displacement current is maximum when:

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A.
Charge is zero
B.
Current is maximum
C.
Voltage is zero
D.
Magnetic field is maximum
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ANSWER :
B. Current is maximum
15.
The SI unit of displacement current is:
A.
Tesla
B.
Weber
C.
Henry
D.
Ampere
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ANSWER :
B. Weber
16.
Displacement current concept is necessary to satisfy:
A.
Gauss’s theorem
B.
Faraday’s law
C.
Charge conservation
D.
Newton’s laws
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ANSWER :
C. Charge conservation
17.
Displacement current plays a crucial role in explaining:

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A.
Electromagnetic waves
B.
Thermoelectric effect
C.
Photoelectric effect
D.
Nuclear reactions
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ANSWER :
A. Electromagnetic waves
18.
Which type of electric field is responsible for displacement current?
A.
Constant electric field
B.
Changing electric field
C.
Non-uniform electric field
D.
Uniform electric field
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ANSWER :
B. Changing electric field