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A transmitter power amplifier requires 30 mA at 300 volt. The DC input power is:
a. 300 watt
b.
9000 watt
c.
9 watt
d. 6 watt
Your answer "b" is not correct. "c" is the right answer.
P = E x I
= 300 x 0.03
= 9 watts.
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