Electrical Theory Flashcards
6 cards from real EIAT and NEIEP Test 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 Theory flashcards as text
What is the unit of electrical resistance?
Answer: Ohm
The ohm (Ω) is the standard unit of electrical resistance in the International System of Units.
Ohm's Law states that voltage equals current multiplied by:
Answer: Resistance
Ohm's Law is expressed as V = I × R, where V is voltage, I is current, and R is resistance.
In a series circuit, the total resistance is equal to:
Answer: The sum of all resistors
In a series circuit, resistances add directly: R_total = R1 + R2 + R3 + …
Which type of current flows in one direction only?
Answer: Direct current (DC)
Direct current (DC) flows continuously in one direction, unlike AC which reverses direction periodically.
What does a capacitor store?
Answer: Electrical charge
A capacitor stores electrical charge (and thus electrical potential energy) in an electric field between its plates.
The standard frequency of AC power in the United States is:
Answer: 60 Hz
The US electrical grid operates at 60 Hz, meaning the current alternates direction 60 times per second.
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