Question

A boy uses two heaters of same material one with
a coil of small length and other with a coil of large
length. Which one will produce more heat when
connected across the same supply? Why?
(consider both have same thickness).​

Answer 1

The coil with more turns produces more heat because the greater the length of coil greater will be the resistance and greater the resistance more heat will be produced.

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Answer 2

The coil with more turns produces more heat because the greater the length of coil greater will be the resistance and greater the resistance more heat will be produced.

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