Voltage, Current and Power Relationships Flashcards
1
Q
What is the current flowing through a 52 ohm line with an input of 1,872 watts?
A
6 amps
2
Q
The voltage produced in a receiving antenna is:
A
Always proportional to the received field strength.
3
Q
Which of the following represents the best standing wave ratio (SWR)?
A
1:1
4
Q
At the ends of a half-wave antenna, what values of current and voltage exist compared to the remainder of the antenna?
A
Maximum voltage and minimum current.
5
Q
An antenna radiates a primary signal of 500 watts output. If there is a 2nd harmonic output of 0.5 watt, what attenuation of the 2nd harmonic has occurred?
A
30 dB
6
Q
There is an improper impedance match between a 30 watt transmitter and the antenna, with 5 watts reflected. How much power is actually radiated?
A
25 watts
