Ohm’s Law (Electrical Resistance - V-I Characteristics of Ohmic and Non-Ohmic Conductors) NEET Questions

Physics - Current Electricity

Ohm’s Law (Electrical Resistance - V-I Characteristics of Ohmic and Non-Ohmic Conductors) MCQ Questions


13.
The unit of electrical resistance is:
A.
Ohm (Ω)
B.
Volt (V)
C.
Ampere (A)
D.
Watt (W)
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ANSWER :
A. Ohm (Ω)
14.
A conductor obeys Ohm’s law if its V-I characteristics are:

NEET - 2016

A.
Linear and passing through origin
B.
Non-linear and passing through origin
C.
Linear but not passing through origin
D.
Non-linear and not passing through origin
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ANSWER :
A. Linear and passing through origin
15.
Ohm’s law is not applicable to:
A.
Semiconductors
B.
Metals
C.
Superconductors
D.
All of the above
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ANSWER :
D. All of the above
16.
For a non-ohmic conductor, the resistance:
A.
Is always infinite
B.
Remains constant
C.
Becomes zero
D.
Changes with voltage
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ANSWER :
D. Changes with voltage
17.
When a conductor obeys Ohm's law, its resistance:
A.
Becomes zero at high voltage
B.
Varies with current
C.
Decreases with increase in temperature
D.
Remains constant regardless of the applied voltage
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ANSWER :
D. Remains constant regardless of the applied voltage
18.
Which of the following does not obey Ohm’s law?

NEET - 2024

A.
Metal wire
B.
Filament bulb
C.
Carbon resistor
D.
Constantan wire
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ANSWER :
B. Filament bulb