The Resistance of a Given Wire Using Ohm's Law NEET Questions

Physics - Experimental Skills

The Resistance of a Given Wire Using Ohm's Law MCQ Questions


1.
According to Ohm’s law, the current flowing through a conductor is ______ to the potential difference across it.
A.
Directly proportional
B.
Inversely proportional
C.
Exponentially related
D.
No relation
😑 View Answer Rough Work Error
ANSWER :
A. Directly proportional
2.
What is the SI unit of resistance?
A.
Ohm
B.
Volt
C.
Ampere
D.
Coulomb
😑 View Answer Rough Work Error
ANSWER :
A. Ohm
3.
Which of the following factors does NOT affect the resistance of a wire?
A.
Length of the wire
B.
Material of the wire
C.
Temperature of the wire
D.
Color of the wire
😑 View Answer Rough Work Error
ANSWER :
D. Color of the wire
4.
If the length of a wire is doubled, its resistance will ______.
A.
Remain the same
B.
Doubles
C.
Triples
D.
Quadruples
😑 View Answer Rough Work Error
ANSWER :
B. Doubles
5.
What happens to the resistance of a wire if its cross-sectional area is doubled?
A.
Increases four times
B.
Becomes half
C.
Becomes one-fourth
D.
Remains unchanged
😑 View Answer Rough Work Error
ANSWER :
C. Becomes one-fourth
6.
Which of the following expressions represents Ohm’s law?
A.
V = IR
B.
I = VR
C.
R = IV
D.
P = IV
😑 View Answer Rough Work Error
ANSWER :
A. V = IR