Electric heaters used for cooking have the filament or the heating coil on a plate made up of clay because:
Clay is a bad conductor of heat
Clay is a bad conductor of electricity
Clay is necessary for good taste
Both A and B
A
Clay is a bad conductor of heat
B
Clay is necessary for good taste
C
Clay is a bad conductor of electricity
D
Both A and B
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Solution
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Electric heaters used for cooking have the filament or the heating coil on a plate made up of clay because clay is bad conductor of heat and electricity.
Heat capacity of clay is 0.33cal/goc so bad conductor of heat.
And clay is an insulator, so bad conductor of electricity.
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