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When a 60 Hz sinusoidal voltage is applied to the input of a half-wave rectifier what is the output frequency? How many minutes per megabyte for broadband use? What must be the same for two resistors that are connected in a parallel? What is the current in a circuit with 9 volts 3 ohms 2 ohms and 4 ohms? What was the importance of fessenden's discovery to electronic communication?