Question

If 1.8 amp flows through a 40 ohm resistor, the voltage across the resistor is :

Answer 1

72 volts.

Step-by-step explanation:

To solve this, we have to use the Ohm's law.

The ohm's law tells us that the voltage drop of a resistor is directly proportional to the current applied to the conductor.

`V=I*R`

in this case the current is 1.8 amps and the resistor is 40 ohm

`V=1.8*40`

so

`V=72 volts`.