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Which of the following statements is/are correct? 1. A fuse wire is made of 37% lead and 63% tin 2. A fuse wire is made of 63% lead and 37% tin 3. A fuse wire has high resistance and low melting point 4. A fuse wire has low resistance and high melting point

Which of the following statements is/are correct? 1. A fuse wire is made of 37% lead and 63% tin 2. A fuse wire is made of 63% lead and 37% tin 3. A fuse wire has high resistance and low melting point 4. A fuse wire has low resistance and high melting point Correct Answer 1, 3 are correct statements

Electric fuse is a protective device which protects electrical equipment in the circuit by breaking the circuit when there is a short circuit.It contains a fuse wire which has low melting point, it allows normal current pass through it safely but if there is any short circuit fuse wire cant withstand the heat produced by that current (infinite current) so it melts and breaks the circuit.

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