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Electric Circuits (Electrical Safety (In 1997, electric shocks killed …
Electric Circuits
Electrical Safety
In 1997, electric shocks killed an estimated 490 people in the United States
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Unplug appliances before working on them, such as when prying toast out of a jammed toaster
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Never touch power lines with anything, including kite string and ladders
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Controlling the Current
The amount of current is determined by the voltage supplied by the battery and the resistance of the conductor.
a simple relationship among voltage, current, and resistance in a circuit that is now known as Ohm’s law
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According to Ohm’s law, when the voltage in a circuit
increases the current increases,
If the voltage in the circuit doesn’t change, then the current in the circuit decreases when the resistance is increased