Which function does the receiving antenna provide in radio communication?
Answer(s): A
The broadcast antenna is used to broadcast the signal over the air. The mixer combines the signal and carrier wave. The de-mixer separates the carrier and the signal.
A current meter is connected to a circuit as shown.What does the current meter read?
Answer(s): B
The current through the meter is equal to the current through R1. The current through R1 is 45V / 10 = 4.5A
An oscilloscope is typically used to analyze __________.
Answer(s): C
An oscilloscope is used primarily to look at complex waveforms.
Printed circuit boards are typically made out of __________.
Fiberglass is used to make most printed circuit boards.
The rate of electrons through a conductor is measured in units of ___________.
Answer(s): D
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