Question

an electric iron of resistance 20 ohm draws a current of 5 ampere calculate the heat produced in 30 seconds​

Answer 1

hey buddy,

here is your ans..

H=I²Rt

= (5)²*20*30

= 25*600

= 15000J

I hope it helps you

thank you

have a great day ahead

Answer 2

Answer:

HEAT PRODUCED =I^2RT

Subsituting values

5^2 ( 20×30 )

25 ( 600 )

15000J

or 1.5×10^4J

• Note that I,R,T&J stand for Current drawn ,Resistance ,Time taken and Joule respectively.

Regards.