Question

1

Select the correct answer.
If you double the voltage in a circuit and reduce the resistance by a factor of four, what will happen to the current?
O A.
B.
C.
OD.
It will double.
It will decrease by a factor of 2.
It will increase by a factor of 8.
It will decrease by a factor of 8.
Reset
Next

Answer 1

The correct answer is C.

We can use Ohm's law to solve this problem. Ohm's law states that the current in a circuit is equal to the voltage divided by the resistance:

I = V/R

If we double the voltage and reduce the resistance by a factor of four, we get:

V' = 2V

R' = R/4

Substituting these values into Ohm's law, we get:

I' = (2V)/(R/4)

Simplifying this equation, we get:

I' = 8I

So the current will increase by a factor of 8.