The radio is connected to a 120V network. The current in the circuit is 0.4A. How much power in hectowatt-hours

The radio is connected to a 120V network. The current in the circuit is 0.4A. How much power in hectowatt-hours is consumed per 5 hour of operation of the receivers.

Initial data: U (voltage in the network to which the radio is connected) = 120 V; I (current in the circuit) = 0.4 A; t (duration of the radio receiver) = 5 hours.

1) Determine the power of the radio receiver: P = U * I = 120 * 0.4 = 48 W.

2) Let’s calculate the power consumption for 5 hours of radio operation: W = P * t = 48 * 5 = 240 W * h = 2.4 GW * h (1 GW * h = 100 W * h).

Answer: For 5 hours of operation of the radio, 2.4 GWh of electricity is consumed.



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