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Physics

Circuits

Physics

Circuits

Lessons

Ohm's law and circuits with resistors

Learn
Introduction to circuits and Ohm's law
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Basic electrical quantities: current, voltage, power
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Resistors in series
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Resistors in parallel
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Example: Analyzing a more complex resistor circuit
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Analyzing a resistor circuit with two batteries
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Resistivity and conductivity
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Electric power
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Kirchhoff's current law
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Kirchhoff's voltage law
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Kirchhoff's laws
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Voltmeters and Ammeters
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Electrolytic conductivity
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Circuits with capacitors

Learn
Capacitors and capacitance
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Capacitance
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Energy of a capacitor
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Capacitors in series
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Capacitors in parallel
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Dielectrics in capacitors
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About this unit

Circuits make computers, digital cameras, and video games possible. Circuits are driving an unprecedented rate of change in how we live. In this topic you'll learn about the physics behind the electronic devices we use.