Question

how the current will change when resistance is double

Answer 1

Heya,

According to the Ohms law,

V = IR

=> I = V/R

By, this law we can say that current is inversely proportional to resistance.

When the resistance increase the current decrease and when resistance decreases the current increases.

So, when the resistance is double then;

=> I = V/2R

=> I = 1/2(V/R)

So, the current will become half when resistance is double.

Hope this helps...:)

Answer 2

The current is directly proportional to the voltage and inversely proportional to the resistance. ... So doubling or tripling the resistance will cause the current to be one-half or one-third the original value.