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Related Flashcards
Related Topics
Cards In This Set
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Power
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The rate at which work is done.
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Units power is in
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Watts
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When VOLTAGE is constant current is ____________ to resistance.
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Inversely proportional
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When RESISTANCE is constant, current is __________ to voltage.
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Directly proportional
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Resistance
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Opposes current (slows it down)
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Resistance Units
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Ohms
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Factors that impact Resistance:
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Thickness- the thinner the wire the more resistanceLength- the longer the wire the more resistanceTemperature- the warmer the wire the more resistanceMaterial- metals have a low resistance
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The resistance of wires in a circuits is...
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0
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Current
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Flow of electrons (how many and how fast)
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Current Units
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Amps
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The direction cirrent moves
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Opposite from electron movement
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What happens when a battery is added to a circuit?
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The battery pushes the electrons through, it doesnt create them.
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What happens inside a battery?
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A chemical reaction, creating a potential difference.
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