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Solution


Q.

Assertion: The connecting wires are made of copper.
Reason: The electrical conductivity of copper is high.
1 Both assertion and reason are correct and reason is the correct explanation of assertion.  
2 Both assertion and reason are correct, but reason is not the correct explanation of assertion.  
3 Assertion is true, but reason is false.  
4 Assertion is false, but reason is true.  

Ans.

(1)

Due to high electrical conductivity of copper, it conducts the current without offering much resistance. The copper being diamagnetic material does not get magnetised due to current through it and hence does not disturb the current in the circuit. Thus, both assertion and reason are correct and reason is the correct explanation of the assertion.