Question

If 0.2 A current is passed for 1 minute through an electric iron whose resistance is 100 oham then how many joules of heat are produced​

Answer 1

time=1 min=60 secs,I=0.2 Ampere,R=100ohm

heat=I^2RT

=(0.2)^2*100*60

=0.04*100*60

=4*60

=240 JOULES

Plz mark it as a BRAINLIEST

Answer 2

Explanation:

• Now according to Joule’s law of heating we get
• H eat generated h = I^2 x R x T where I is current, R is resistance of iron box, T is time in seconds.
• So current I =  0.2 A, T = 1 minute = 1 x 60 secs and R = 100 ohms
•         So H = (0.2)^2 x 100 x 60
•              H = 0.04 x 100 x 60
•              H = 0.04 x 6000
•             H = 240 Joules
• Therefore heat generated is 240 Joules.

Reference link will be

https://brainly.in/question/5030589