Question

State the factors on which the heat produced in a current carrying conductor depends. Give one particle application of this effect.​

Answer 1

The heat produced in a current carrying conductor depends upon :-

1. The amount of current passing through the conductor

2. The resistance of the conductor

3.The time for which current is passed

This phenomenon is used in heaters

Answer 2

$\bold{Factors \: affecting \: heat \: produced }$ $\bold{carrying \: conductor}$

It depends upon three factors:-

◼Amount of current (I)passing through conductor.

◼Resistance(R) in wire

◼Time(t) about which current is flowing in conductor.

where,

$\boxed{ \huge{H = {I}^{2}Rt}}$

also know as joules law of heating.

$\underline{Amount \: of \: current passing }$$\underline{through \: conductor}$

▶Heat produced in a conductor is directly proportional to the square amount of current passing through it .

If the heat produced is H then

$H \propto {I}^{2}$

$\underline{Resistance \: in \: wire}$

▶The heat produced is directly proportional to resistance of the xurrent carrying conductor.

$H \propto R$

$\underline{Time \: for \: which \: current \: flows }$

▶It is directly proportional to the time for which the current is letted flow through the conductor.

$H \propto t$

overall,

$\large{APPLICATIONS}$

◼It is used in the heater , the more the current will flow for more time the more will be the resistance so more heat will be produced.

◼In Hair dryers ,where there is a web like structure of a wire with high resistance so when fan sucks in air the air which gets heated due to high heat produced by resistance.