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


1.
Ohm’s law states the relationship between:
A.
Current and power
B.
Voltage and resistance
C.
Current and voltage
D.
Resistance and power
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ANSWER :
C. Current and voltage
2.
An ohmic conductor has a resistance of 5 Ω. If the voltage is doubled, what happens to the current?

NEET - 2022

A.
It doubles
B.
It remains the same
C.
It halves
D.
It becomes zero
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ANSWER :
A. It doubles
3.
The slope of the V-I graph for an Ohmic conductor is:
A.
Resistance
B.
Conductance
C.
Reciprocal of resistance
D.
Power
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ANSWER :
C. Reciprocal of resistance
4.
For a resistor of resistance R, when the potential difference V is applied, the current I through the resistor is:
A.
I = 1/VR
B.
I = R/V
C.
I = V × R
D.
I = V/R
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ANSWER :
D. I = V/R
5.
Which of the following is a non-ohmic conductor?
A.
Resistor
B.
Copper wire
C.
Nichrome wire
D.
Diode
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ANSWER :
D. Diode
6.
Which of the following is an example of a non-ohmic conductor?

NEET - 2017

A.
Copper wire
B.
Incandescent bulb
C.
Constantan wire
D.
Carbon resistor
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ANSWER :
B. Incandescent bulb