Moving Coil Galvanometer ( its sensitivity, and conversion to ammeter and voltmeter) NEET Questions

Moving Coil Galvanometer ( its sensitivity, and conversion to ammeter and voltmeter) MCQ Questions

1.
What is the sensitivity of a moving coil galvanometer primarily dependent on?
A.
Number of turns in the coil
B.
Magnetic field strength
C.
Torsional constant of the suspension wire
D.
All of the above
ANSWER :
D. All of the above
2.
Which of the following factors increases the sensitivity of a moving coil galvanometer?
A.
Decreasing the torsional constant of the suspension wire
B.
Increasing the number of turns of the coil
C.
Decreasing the resistance of the coil
D.
All of the above
ANSWER :
D. All of the above
3.
A moving coil galvanometer can be converted into an ammeter by
A.
Connecting a high resistance in series
B.
Connecting a low resistance in parallel
C.
Connecting a low resistance in series
D.
Connecting a high resistance in parallel
ANSWER :
B. Connecting a low resistance in parallel
4.
The current sensitivity of a moving coil galvanometer is increased by

NEET - 2018

A.
Increasing the number of turns
B.
Decreasing the area of the coil
C.
Decreasing the magnetic field
D.
Increasing the spring constant
ANSWER :
A. Increasing the number of turns
5.
A moving coil galvanometer can be converted into a voltmeter by
A.
Connecting a low resistance in parallel
B.
Connecting a high resistance in series
C.
Connecting a low resistance in parallel
D.
Using a superconducting wire
ANSWER :
B. Connecting a high resistance in series
6.
To increase the current sensitivity of a moving coil galvanometer, one should
A.
Increase the magnetic field strength
B.
Increase the number of turns in the coil
C.
Decrease the torsional constant of the suspension wire
D.
All of the above
ANSWER :
D. All of the above