When passing through a conductor, if a work of 540 kJ is performed at a voltage at its ends of 120 V?

When passing through a conductor, if a work of 540 kJ is performed at a voltage at its ends of 120 V? Conductor resistance 24 Ohm

To calculate the time of movement of the current along the taken conductor, we apply the Joule-Lenz law: A = U ^ 2 * t / R, whence t = A * R / U2.

Values of variables: A – perfect work (A = 540 kJ = 540 * 10 ^ 3 J); R is the resistance of the taken conductor (R = 24 Ohm); U – voltage (U = 120 V).

Let’s perform the calculation: t = A * R / U ^ 2 = 540 * 10 ^ 3 * 24/120 ^ 2 = 900 s or 15 minutes.

Answer: The current moved along the taken conductor for 15 minutes.