What is an electromagnet?
Chapter 9: Electricity & Magnetism

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Physics
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8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It typically consists of a coil of wire wrapped around a core material, such as iron.
2.
FLASHCARD QUESTION
Front
How can you strengthen an electromagnet?
Back
You can strengthen an electromagnet by adding more coils of wire around the core or increasing the electric current flowing through the wire.
3.
FLASHCARD QUESTION
Front
What is a closed circuit?
Back
A closed circuit is a complete electrical loop that allows current to flow. All components are connected without any breaks.
4.
FLASHCARD QUESTION
Front
What is a series circuit?
Back
A series circuit is a type of electrical circuit in which components are connected end-to-end, so that the current flows through each component in turn.
5.
FLASHCARD QUESTION
Front
What is a parallel circuit?
Back
A parallel circuit is a type of electrical circuit where components are connected across common points or junctions, allowing current to flow through multiple paths.
6.
FLASHCARD QUESTION
Front
What is current in electricity?
Back
Current is the flow of electric charge in a circuit, measured in amperes (A). It represents how much charge is flowing per unit time.
7.
FLASHCARD QUESTION
Front
What is voltage?
Back
Voltage, also known as electric potential difference, is the measure of the energy per unit charge available to drive the flow of current in a circuit, measured in volts (V).
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