Adventure in amateur radio
Amateur Radio Resume
December 27, 2013
FCC Technician Exam Question Of The Day (T5C09)
Q) How much power is being used in a circuit when the applied voltage is 13.8 volts DC and the current is 10 amperes?
A) 138 watts
NJ2X PIE Triangle
It is useful to memorize the PIE triangle. By covering up one variable you get the equation. So in this example:
P = I * E
P = 10 Amps * 13.8 volts = 138 Watts
Easy as PIE!
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FCC Element 2 Technician Class Question Pool valid until June 30 2014