Question

If current in a wire of constant resistance made 3 times, then what will be power loss?
​

Answer 1

Explanation:

According to Ohm's law, V = IR. That is, I = V/R.

Now, if the resistance is halved and the voltage remains the same, the new value of current becomes, I

′

=

2

R

V

=

R

2V

.Thatis,I

′

=2(

R

V

)=2I.

Hence, the current will become double.