Wheatstone Bridge NEET Questions

Wheatstone Bridge MCQ Questions

1.
Wheatstone bridge is an arrangement to measure:
A.
Current in a circuit
B.
EMF of a cell
C.
Capacitance
D.
Unknown resistance accurately
ANSWER :
D. Unknown resistance accurately
2.
Wheatstone bridge consists of:
A.
Three resistors
B.
Four resistors arranged in a quadrilateral
C.
Two resistors
D.
Five resistors
ANSWER :
B. Four resistors arranged in a quadrilateral
3.
In a Wheatstone bridge, the galvanometer is connected:
A.
In one of the four arms of the bridge
B.
Across one diagonal of the bridge (between the two non-battery vertices)
C.
In series with the battery
D.
In parallel with the battery
ANSWER :
B. Across one diagonal of the bridge (between the two non-battery vertices)
4.
The balance condition of a Wheatstone bridge with arms P, Q, R, S (in cyclic order) is:
A.
PR = QS
B.
P/Q = R/S
C.
P + R = Q + S
D.
P/Q = S/R
ANSWER :
B. P/Q = R/S
5.
When a Wheatstone bridge is balanced, the current through the galvanometer is:
A.
Half the battery current
B.
Zero
C.
Maximum
D.
Equal to battery current
ANSWER :
B. Zero
6.
The Wheatstone bridge balance condition is independent of:
A.
The connections of the arms
B.
The values of arm resistances
C.
The galvanometer resistance and battery EMF
D.
The unknown resistance
ANSWER :
C. The galvanometer resistance and battery EMF