Flashcards
Power in DC Circuits (Mod.2 Sect.2 part3)
Flashcards do conjunto (11)
- 1_____ is the work performed in an electrical circuit.Power
- 2The amount of work performed by a circuit (power) is measured in units called _____.Watts
- 3The abbreviation for Watt is __.W
- 4_____ is the amount of power delivered over a period of time.Energy
- 5Energy is measured in units called _______ or _______.watthours, kilowatthours
- 6The formula for calculating power is _____.P = E x I
- 7The P in the power formula stands for _____ (measured in watts.)power
- 8The E in the power formula stands for _____ (measured in volts).voltage
- 9The I in the power formula stands for _____ (measured in amperes).current
- 10The two variations for the power formula are ____ and ____.P = I (squared) x R, P = E (squ) / R
- 11In any resistive circuit, the total power supplied by the power source is equal to the power dissipated through the circuit resistors. The simple phrase to help memorize this is ________________.Power in equals power out.