| ASSERTION: A soft iron core is used in a moving coil galvanometer to increase the strength of magnetic field. |
| REASON: From soft core number of the magnetic lines of force passes. |
A) If both assertion and reason are true and reason is the correct explanation of assertion.
B) If both assertion and reason are true and reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If both assertion and reason are false.
E) If assertion is false but reason is true.
Correct Answer: A
Solution :
A soft iron core increase the strength of magnetic field, by forcing large number of magnetic lines through the soft iron core, which in turn increases the sensitivity of the galvanometer.
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