The radio is connected to a 120 V network. The current in the circuit is 0.4 A.

The radio is connected to a 120 V network. The current in the circuit is 0.4 A. How much electricity is consumed in 5 hours of operation of the receiver?

The power consumption of a radio receiver can be determined by the formula:
W = P * t, where P is the power of the radio receiver, t is the operating time of the radio receiver (t = 5 h).
Radio receiver power:
P = U * I, where U is the voltage in the network (U = 120 V), I is the current in the circuit (I = 0.4 A).
Let’s calculate the power consumption of the radio receiver:
W = P * t = U * I * t = 120 * 0.4 * 5 = 240 W * h = 2.4 * 10 ^ 2 W = 2.4 GW.
Answer: Electricity consumption is 2.4 GW.