Discussion
Assertion (A) : Safety fuses are made up of materials having a high melting point.
Reason (R) : Safety fuses should be resistant to electric current.
Answer: D
Correct answer: Both A and R are false.
A fuse is meant to melt and break the circuit on an overload, so its wire is a tin–lead alloy of low melting point - and it must pass the normal working current freely rather than resist it. Both A and R are false.
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