Question

The heating element of an electric heater should be made with a material which should have

​​​​​​​$[$1 Mark$]$

• A. high specific resistance and high melting point
• B. high specific resistance and low melting point
• C. low specific resistance and low melting point
• D. low specific resistance and high melting point

Answer 1

The correct option is A high specific resistance and high melting point

A heating wire should be such that it produces more heat when current is passed through it and also does not melt. It is only possible when the heating wire has high specific resistance and high melting point.