A final amplifier of a radio transmitter draws 250 mA of plate current when the plate supply
voltage is 1400 volts. If the plate circuit efficiency is 80% and the transmitter is connected to an
antenna having a feed impedance of 70 ohms, what is the antenna current at the feed-point?
A. 4.0 A
B. 2.2 A
C. 1.25 A
D. 2.0 A
voltage is 1400 volts. If the plate circuit efficiency is 80% and the transmitter is connected to an
antenna having a feed impedance of 70 ohms, what is the antenna current at the feed-point?
A. 4.0 A
B. 2.2 A
C. 1.25 A
D. 2.0 A