(a) Of what substance is the fuse wire made ? Why ?
(b) Explain why, a copper wire cannot be used as a fuse wire.
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(a) The fuse wire is made of tin-plated copper wire because of its low melting point.
(b) Pure copper wire cannot be used as a fuse wire because it has a high melting point due to which it will not melt easily when a short circuit takes place.
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