Question

If you double the voltage in a circuit and reduce the resistance by a factor of four, what will happen to the current?

a) it will double
b) it will decrease by a factor of 2
c) it will increase by factor of 8
d) it will decrease by a factor of 8

Answer 1

c) increase by factor of 8

Answer 2

thank you.

Answer 3

current is directly proportional to voltage so if voltage doubles current doubles as well.
current is inversely proportional to resistance so if resistance decreases by a factor of 4 current increases by a factor of four