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G5B - Electrical Principles

General Class

AC circuit theory: RMS voltage, phase angle, power factor, dB calculations

14 questions

All G0A G0B G1A G1B G1C G1D G1E G2A G2B G2C G2D G2E G3A G3B G3C G4A G4B G4C G4D G4E G5A G5B G5C G6A G6B G7A G7B G7C G8A G8B G8C G9A G9B G9C G9D
G5B01

What dB change represents a factor of two increase or decrease in power?
G5B02

How does the total current relate to the individual currents in a circuit of parallel resistors?
G5B03

How many watts of electrical power are consumed if 400 VDC is supplied to an 800-ohm load?
G5B04

How many watts of electrical power are consumed by a 12 VDC light bulb that draws 0.2 amperes?
G5B05

How many watts are consumed when a current of 7.0 milliamperes flows through a 1,250-ohm resistance?
G5B06

What is the PEP produced by 200 volts peak-to-peak across a 50-ohm dummy load?
G5B07

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?
G5B08

What is the peak-to-peak voltage of a sine wave with an RMS voltage of 120 volts?
G5B09

What is the RMS voltage of a sine wave with a value of 17 volts peak?
G5B10

What percentage of power loss is equivalent to a loss of 1 dB?
G5B11

What is the ratio of PEP to average power for an unmodulated carrier?
G5B12

What is the RMS voltage across a 50-ohm dummy load dissipating 1200 watts?
G5B13

What is the output PEP of an unmodulated carrier if the average power is 1060 watts?
G5B14

What is the output PEP of 500 volts peak-to-peak across a 50-ohm load?