State Joule's law of heating.

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(N/A) Joule's law of heating states that the heat produced $(H)$ in a conductor is directly proportional to the square of the current $(I)$ flowing through it, the resistance $(R)$ of the conductor, and the time $(t)$ for which the current flows.
Mathematically, it is expressed as: $H = I^{2}Rt$
Where:
$H$ = Heat produced in Joules $(J)$
$I$ = Current in Amperes $(A)$
$R$ = Resistance in Ohms $(\Omega)$
$t$ = Time in seconds $(s)$

Explore More

Similar Questions

An electric heater rated $1200 \ W$ operates $2 \ h$ per day. Find the cost of the energy required to operate it for $30$ days at ₹ $5.00$ per unit.

$A$ potential difference $V$ is applied across a conductor of length $L$ and diameter $D$. How is the resistance $R$ of the conductor affected,when in turn $(i)$ $V$ is halved,$(ii)$ $L$ is halved,and $(iii)$ $D$ is doubled? Justify your answer in each case.

Tungsten is used almost exclusively for filaments of electric bulbs. List two reasons.

Why are alloys used to make standard resistors?

Calculate the equivalent resistance between the points $A$ and $B$ in the following combination.

Difficult
View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo