electric circuit: Quick Facts

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Facts

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Photos and Videos

Basic electric circuit, with switch, battery, and lamp.

Diagram of a series circuit showing three light bulbs connected in a single loop to a wall outlet, with all bulbs lit and electricity flowing through each one in sequence.

Diagram of a parallel electrical circuit showing three lit light bulbs, each connected independently to a power source, illustrating that each bulb receives power directly from the outlet.

Two simple circuit diagrams, each with a battery, resistor, and ammeter. The left diagram shows the ammeter before the resistor; the right diagram shows it after the resistor.

A diagram of a simple electrical circuit with a battery connected in series to a resistor, and a voltmeter connected in parallel across the resistor to measure voltage.

Typical components of an electrically powered watch.

How does electrical resistance affect a circuit?

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