ELECTRICITY & MAGNETISM

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Last updated 8:50 AM on 5/1/26
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16 Terms

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What is electric current?

Flow of electric charge

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Current equation

current = charge ÷ time

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What is voltage?

Energy transferred per unit charge

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Voltage equation

voltage = energy ÷ charge

5
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What is resistance?

Opposition to current flow

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Ohm’s Law

V = IR

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Series circuit rules

Same current

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Parallel circuit rules

Same voltage

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Electrical power equation

P = VI

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What is a magnetic field?

Region where magnetic force is experienced

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Magnetic poles

North and South poles

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Like poles

Repel

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Unlike poles

Attract

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What is electromagnetism?

Magnetism produced by electric current

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What is electromagnetic induction?

Voltage induced when conductor cuts magnetic field lines

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Factors affecting induced voltage

Speed