alleryStart learning →Which material is used for the heating element of appliances like electric irons because of its high resistivity and high melting point?
Acopper
Baluminium
Cnichrome
Dsilver
Answer & Solution
Correct answer: C. nichrome
1. Heating elements must resist current strongly (to get hot) without melting.
2. **Nichrome**, an alloy, has high resistivity and a high melting point and does not oxidise readily when hot.
3. Copper/aluminium/silver have low resistivity and are used for connecting wires, not heating coils.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch12 'Electricity', §12.4_
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