Wheatstone Bridge NEET Questions

Physics - Current Electricity

Wheatstone Bridge MCQ Questions


13.
Wheatstone bridge is used to measure resistance accurately in the range:
A.
Above 10⁶ Ω
B.
Below 1 Ω
C.
Moderate values (a few Ω to a few kΩ)
D.
Only above 1 MΩ
😑 View Answer Rough Work Error
ANSWER :
C. Moderate values (a few Ω to a few kΩ)
14.
If the Wheatstone bridge is used and a small change is made in one arm, the galvanometer responds. The bridge is then said to be:
A.
Less sensitive
B.
Unbalanced
C.
Disconnected
D.
More balanced
😑 View Answer Rough Work Error
ANSWER :
B. Unbalanced
15.
If the EMF of the battery in a Wheatstone bridge is doubled, the balance condition:
A.
Becomes invalid
B.
Remains the same
C.
Doubles
D.
Halves
😑 View Answer Rough Work Error
ANSWER :
B. Remains the same
16.
A balanced Wheatstone bridge has resistances 4 Ω, 6 Ω, 8 Ω in three arms. The fourth resistance is:
A.
12 Ω
B.
16 Ω
C.
10 Ω
D.
14 Ω
😑 View Answer Rough Work Error
ANSWER :
A. 12 Ω
17.
In a Wheatstone bridge with arms P, Q, R, X (X being the unknown), the unknown X for balance is:
A.
X = (Q/P) × R
B.
X = (P/Q) × R
C.
X = P × Q × R
D.
X = R/(PQ)
😑 View Answer Rough Work Error
ANSWER :
A. X = (Q/P) × R
18.
The Wheatstone bridge principle is used in:
A.
Potentiometer
B.
Voltmeter
C.
Galvanometer
D.
Meter bridge and Post Office box
😑 View Answer Rough Work Error
ANSWER :
D. Meter bridge and Post Office box