Question

The resistance of a resistor is reduced to half of the initial value. In doing so, if other parameters of the circuit remains unchanged , the heating effects in resistor will become
a) two times
b)half
c) one-fourth
d) four times

Answer 1

Answer:

I think d is correct option

Answer 2

Answer:

b) half

Explanation:

We know that heat produced by resistor is given by

H = i²RT

So when R is halved,  H is also halved.