Electrical Engineering Flashcards
6 cards from real NCEES practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Electrical Engineering flashcards as text
On the NCEES PE Electrical exam, Ohm's Law states that the voltage across a resistor equals:
Answer: V = IR
Ohm's Law: V = IR, where V is voltage in volts, I is current in amperes, and R is resistance in ohms.
In NCEES PE Electrical practice, the power dissipated in a resistor R carrying current I is:
Answer: P = I²R
Power dissipated in a resistor is P = I²R, also expressible as P = V²/R or P = VI.
For the NCEES PE Electrical exam, Kirchhoff's Voltage Law (KVL) states that:
Answer: The algebraic sum of voltages around any closed loop equals zero
KVL: the sum of all voltage rises and drops around any closed loop equals zero, reflecting conservation of energy.
In NCEES PE Electrical exams, the impedance of an ideal capacitor C at angular frequency ω is:
Answer: Z = 1/(jωC)
Capacitive impedance Z = 1/(jωC): it decreases with increasing frequency, making capacitors act as short circuits at high frequency.
On the NCEES PE Electrical exam, the three-phase apparent power for a balanced system is:
Answer: S = √3 × VL × IL
Three-phase apparent power S = √3 × VL × IL, where VL and IL are line voltage and line current respectively.
In NCEES PE Electrical engineering, the turns ratio of a transformer relates primary and secondary voltages by:
Answer: V1/V2 = N1/N2
Transformer voltage ratio: V1/V2 = N1/N2 — more turns on the primary means higher primary voltage.
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