
Electromagnetism and Electrical Concepts
Flashcard
•
Physics
•
University
•
Practice Problem
•
Hard
Emilee Jackson
Used 1+ times
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19 questions
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1.
FLASHCARD QUESTION
Front
What is electrical current?
Back
A flow of charged particles.
2.
FLASHCARD QUESTION
Front
What is an electric circuit?
Back
An unbroken path of material that carries an electrical current.
3.
FLASHCARD QUESTION
Front
What happens when a circuit is complete?
Back
Charged particles are attracted and move along the pathway.
4.
FLASHCARD QUESTION
Front
What unit is used to measure electrical current?
Back
Ampere or amp.
5.
FLASHCARD QUESTION
Front
What is resistance in an electrical circuit?
Back
A measure of the opposition to the flow of current.
6.
FLASHCARD QUESTION
Front
What factors influence resistance?
Back
Material properties, length, cross-sectional area, and temperature.
7.
FLASHCARD QUESTION
Front
What is the role of an insulator in a circuit?
Back
It has high resistance, like the plastic coating on a wire.
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