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Assertion: The fuse used in electric circuits protects circuits and appliances. Reason: The fuse is placed in parallel with the appliances |
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Answer» assertion is correct. reason in incorrect. fuse is a safety device which works on the principle of heating effect of current. it is always connected in series, in between the appliance and the switch. When a current higher than the rated capacity of fuse passes through the wire the fuse wire melts and breaks the circuit thereby protecting the expensive electrical equipment. fuse wire is made up of a material with low melting point and high resistivity (specific resistance) eg. tin-lead alloys |
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