A current of 4A flows through the cop, to the ends of which a voltage of 220 V is applied.

A current of 4A flows through the cop, to the ends of which a voltage of 220 V is applied. Determine the power of the electric current, the work done by the electric current in 10 s.

Data: U (applied voltage) = 220 V; I (current) = 4 A; t (duration of the current) = 10 s.

1) Calculate the current power: P = I * U = 4 * 220 = 880 W.

2) Calculate the work done by the current in 10 s: Q = U * I * t = P * t = 880 * 10 = 8.8 * 10 ^ 3 J (8.8 kJ).

Answer: The current power is 880 W; in 10 s, a work of 8.8 kJ was completed.



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