# The potential difference across a resistor is 12V. The current in the resistor is 2.0A. If 4 C passes through the resistor, what is the energy transferred and the time taken? If a current I passes through a resistor with resistance R when a potential difference V is applied across it, we have a power consumption given by P = V*I

Here I = 2 ampere and V = 12 V.

The power through the resistor is 12*2 = 24 W.

...

Start your 48-hour free trial to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.

If a current I passes through a resistor with resistance R when a potential difference V is applied across it, we have a power consumption given by P = V*I

Here I = 2 ampere and V = 12 V.

The power through the resistor is 12*2 = 24 W.

The time taken for a charge of 4 C to pass through the resistor when a current equal to 2 A is flowing through it is 4/2 = 2 second.

The energy transferred when the power flowing through the resistor is 24 W in 2 second is 48 J.

The required value for time taken by the 4 coulomb to pass through the resistor is 2 second and the energy transferred is 48 J.

Approved by eNotes Editorial Team