Question

0.(a) What is Joule's heating effect? Obtain an expression for heat produced i
a resistor R when a current I flows through it for timet.
(b) List applications of heating effect of electric current from daily lilfe.​

Answer 1

Joule's law of heating :-

According to joules law of heating the heat produced in a resistor R when a current I flow through it for time T is given by expression :-

$h = {i}^{2} rt$

The heat produced in a resistor :-

• Is directly proportional to the square of current flowing through it .
• Is directly proportional to resistance.
• Is directly proportional to the time for which current flow through it .

The application of joules law of heating.

• It is used in heating element like electric heater.
• It is used in electric iron .
• It is used in microoven for baking bread is based on heating effect of electric current .

Answer 2

Explanation:

thanks a lot

thank you so much guys