| Assertion: The coil is the resistance boxes are made by doubling the wire. |
| Reason: Thick wire is required in resistance box. |
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: C
Solution :
The coil in the resistance boxes are made from double wire. Due to this current in two wires flows in opposite directions i.e. magnetic flux linked with the each coil cancel each other. Thus, no e.m.f. is induced in the resistance.
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