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heat produced in a conductor of resistance 4.2ohm with 10A current is

heat produced in a conductor of resistance 4.2ohm with 10A current is 

Grade:8

3 Answers

Umakant biswal
5359 Points
4 years ago
@ gayathri 
I think the time must be given in the question , if not then u can directly apply the joules law of heating in that case 
which formula is 
H = I SQUARE R 
SO, BY CALCULATING 
H = 10 square * 4.2 
H= 100 * 4.2 
H= 420 JOULE . 
hope it clears your doubt 
all the best ...
haripriya
37 Points
4 years ago
heat produses many ways like sunheat is very product it can used elevators solar many types arein  our sun heat
 
PRABHU KIRAN
15 Points
one year ago
We know that,H=I2RT
As we know it from JOULES LAW,
But T is not given,so,H=I2R
H=(10*10*4.2)
H=420JOULES/SEC
H=420/(4.2)=100CAL/SEC
 

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