| Directions: In the following questions, a statement of Assertion [A] is followed by a statement of Reason (R). Mark the correct choice as: |
| Assertion [A]: The Earth's magnetic field does not affect the working of a moving coil galvanometer. |
| Reason (R): Earth's magnetic field is very weak. |
A) Both Assertion [A] and Reason (R) are true and Reason (R) is the correct explanation of Assertion [A]
B) Both Assertion [A] and Reason (R) are true but Reason (R) is not the correct explanation of Assertion [A]
C) Assertion [A] is true but Reason (R) is false
D) Assertion [A] is false and Reason (R) is also false
Correct Answer: A
Solution :
(a) In a moving coil galvanometer, the coil is suspended in a very strong uniform magnetic field created by two magnetic pole pieces. The Earth's magnetic field is quite weak as compared to that field, therefore, it does not effect the working of moving coil galvanometer.
You need to login to perform this action.
You will be redirected in
3 sec
