What is the voltage at the ends of the conductor if, when a charge of 2.5 C passes through it, work of 550 J is performed?

Given:

A = 550 Joules – the work that is done by the electric current when the charge q passes through the conductor;

q = 2.5 Coulomb – the charge that passes through the conductor.

It is required to determine U (Volt) – the voltage at the ends of the conductor.

The work done by electric current is determined by the following formula:

A = W * t, where W is the power of the electric current.

Taking into account that W = U * I, we get:

A = U * I * t, where I is the current strength.

Since q = I * t, we get:

A = U * q, from here we find that:

U = A / q = 550 / 2.5 = 220 Volts.

Answer: the voltage at the ends of the conductor is 220 volts.