The Resistivity of the Material of a Given Wire Using a Metre Bridge NEET Questions

Physics - Experimental Skills

The Resistivity of the Material of a Given Wire Using a Metre Bridge MCQ Questions


7.
Which material is commonly used for the wire in a metre bridge?
A.
Copper
B.
Nichrome
C.
Iron
D.
Aluminium
😑 View Answer Rough Work Error
ANSWER :
B. Nichrome
8.
If the length of the wire in a metre bridge is doubled, how does it affect the measured resistance?
A.
Increases
B.
Decreases
C.
Remains constant
D.
Fluctuates
😑 View Answer Rough Work Error
ANSWER :
B. Decreases
9.
A metre bridge is modified by using a thick copper strip instead of a wire. How will this affect its sensitivity?
A.
Decreases
B.
Increases
C.
Remains unchanged
D.
Sensitivity becomes infinite
😑 View Answer Rough Work Error
ANSWER :
A. Decreases
10.
Which of the following errors is most significant in a metre bridge experiment?
A.
Parallax error
B.
End corrections
C.
Length measurement error
D.
Jockey pressure error
😑 View Answer Rough Work Error
ANSWER :
B. End corrections
11.
Why is the jockey used in a metre bridge experiment moved gently on the wire?
A.
To avoid excessive pressure
B.
To increase contact resistance
C.
To get a clear deflection
D.
To minimize heating effects
😑 View Answer Rough Work Error
ANSWER :
A. To avoid excessive pressure
12.
In a metre bridge experiment, what will happen if the wire has a non-uniform cross-section?
A.
Resistance varies along the wire
B.
No effect on measurements
C.
Current remains constant
D.
Current distribution remains the same
😑 View Answer Rough Work Error
ANSWER :
A. Resistance varies along the wire