Avionics Electronics Technician (AET) Practice Test

A circuit has 12 volts across a 4-ohm load. What power is dissipated by the load?

36 W 48 W 192 W 3 W

36 W

Current is 12/4 = 3 A, so power is P = V x I = 12 x 3 = 36 watts.

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