Question

The heat produced in a conductor of resistance R when a current I flows through it for some time t is H ,then if the current is doubled keeping everything same heat produced becomes.

Answer 1

heat produced is given by the formula,

H=I²RT

Now,

the current is doubled keeping everything the same

H ' =(2I)²RT

H '=4I²RT

H ' =4(I²RT)

H '=4 H (H=I²RT)

I hope this helps ( ╹▽╹ )