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Question

The essential requirements for a good heating element are _________________.

A
High resistivity and low melting point
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B
High resistivity and high melting point
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C
Low resistivity and low melting point
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D
Low resistivity and high melting point
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Solution

The correct option is A High resistivity and high melting point
ESSENTIAL REQUIREMENTS OF GOOD HEATING ELEMENT High-specific resistance so that small length of wire may be required to provide given amount of heat. High-melting point so that it can withstand for high temperature, a small increase in temperature will not destroy the element.

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