Basic Flashcards
7 cards from real Fundamentals of Engineering practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Basic flashcards as text
What does Ohm's Law state?
Answer: Voltage equals current multiplied by resistance
Ohm's Law is V = IR, where V is voltage, I is current, and R is resistance.
Three resistors of 2 Ω, 3 Ω, and 5 Ω are connected in series. What is the total resistance?
Answer: 10 Ω
Series resistances add directly: 2 + 3 + 5 = 10 Ω.
Which material is classified as a semiconductor?
Answer: Silicon
Silicon is the most widely used semiconductor, having conductivity between conductors and insulators.
What is the power consumed by a device drawing 2 A at 120 V?
Answer: 240 W
Power P = IV = 2 A × 120 V = 240 W.
In a parallel circuit, the voltage across each branch is:
Answer: Equal to the source voltage
In a parallel circuit, all branches share the same voltage as the source.
Which of the following converts electrical energy into mechanical energy?
Answer: Electric motor
An electric motor converts electrical energy into rotational (mechanical) energy.
What does a capacitor store?
Answer: Electrical energy in an electric field
A capacitor stores electrical energy by accumulating charge on two conductive plates separated by an insulator.