If the resistance of an electric circuit is 12 ohms and the voltage in the circuit is 60 V, the current flowing through the circuit is a. 60 a. b. 5 a. c. 0.2 a. d. 720 a. User: A transmission system at a radio station uses a/an _______ to convert a direct current into a high frequency alternating current. a. modulator b. transmitting antenna c. oscillator d. demodulator User: When all parts of a circuit are composed of conducting materials, the circuit is said to be a. ...

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V=IR 60= I.12 I= 5 A transmission system uses a modulator.

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