Question

a current of 4A passes through a resistance of 100 ohm for 15 min calculate heat produced in calories​

Answer 1

Answer:

H=4×4×100×15×60=1440000J

Explanation:

According to joules law of heating

H=I^2Rt

H=heat produced

I=current

R=resistance

t=time(in seconds )

Answer 2

Answer:

HERE YOUR ANSWER IS

GIVEN

Current (I) = 4A

resistance (R) = 100 ohms

time (t) = 15 mins = 15×60 = 900 s

SOLUTION

Heat produced = I^2RT

= (4)^2 (100)(900)

= 16 (90000)

= 14,40,000 J

= 421. 92 kilocalories

=344020.258970806 gramcalories