Question

Which statement describes the relationship of voltage and current?

Voltage is directly proportional to current because I = .
Voltage is inversely proportional to current because I = .
Voltage is directly proportional to current because I = VR.
Voltage is inversely proportional to current because I = VR.

Answer 1

Voltage is directly proportional to current because I=V/R

Answer 2

By definition, of the law of ohm, we have to:

`image`

Where,

V: voltage

I: current

R: resistance

Therefore, we have that the relationship between voltage and current is proportional.

The proportionality constant for this case is the resistance.

For the current we have:

`image`

The proportionality constant for this case is the inverse of the resistance.

Answer:

A statement that describes the relationship of voltage and current is:

Voltage is directly proportional to current because I = V / R