Assertion : Alloys like constantan and nichrome are used for making resistance wires used in resistance boxes where pure metals are used for making connection wires.
Reason : Specific resistance of the alloys like constantan, nichrome is quite high whereas specific resistance of pure metals is low.
(1) If both Assertion and Reason are true and Reason is correct explanation of Assertion.
(2) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
(3) If Assertion is true but Reason is false.
(4) If Assertion is false but Reason is true.
