Electronics Information Flashcards
6 cards from real AFCT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Electronics Information flashcards as text
What is the unit of measurement for electrical resistance?
Answer: Ohm
The ohm is the SI unit of electrical resistance, named after German physicist Georg Simon Ohm.
In a series circuit with three resistors of 10, 20, and 30 ohms, what is the total resistance?
Answer: 60 ohms
In a series circuit, total resistance is the sum of all individual resistances: 10 + 20 + 30 = 60 ohms.
What component in a circuit allows current to flow in only one direction?
Answer: Diode
A diode is a semiconductor device that allows current to flow in one direction and blocks it in the opposite direction.
What does AC stand for in electrical terminology?
Answer: Alternating Current
AC stands for Alternating Current, where the flow of electric charge periodically reverses direction.
What happens to the brightness of bulbs connected in series when one bulb burns out?
Answer: All bulbs go out
In a series circuit, all components share a single current path. If one bulb burns out, the circuit is broken and all bulbs go out.
What is the purpose of a fuse in an electrical circuit?
Answer: To protect against overcurrent
A fuse protects a circuit by melting and breaking the circuit when current exceeds a safe level.