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# Electric Current

## Electrons move through circuits to produce electric current.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
• Read

## Electric Current and Circuits

by CK-12 //at grade
Covers electrical current, electrical currents, electrical power, and electrical energy.
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4
• Interactive Simulations

## Telegraph

by CK-12 //at grade
Explore the concept of Morse Code and how signals are transfered over great distances by using telegraph machines based on electromagnets
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0
• Interactive Simulations

## Power Lines

by CK-12 //at grade
Learn about the relationship between electric potential, current, and resistance in the context of high-voltage AC power lines
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0
• Interactive Simulations

## Electric Analogies

by CK-12 //at grade
Explore a different way of thinking about electricity as a way to become familiar with the concept of potential, current, and resistance
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0
• Interactive Simulations

## Dollhouse

by CK-12 //at grade
Learn about the analysis of parallel circuits in the context of a realistic household circuit.
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0
• Interactive Simulations

## Marquee Lights

by CK-12 //at grade
Learn about different ways you can wire an electric circuit, and how the brightness of the lights depends on how they are configured.
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0
• Interactive Simulations

## Flashlight

by CK-12 //at grade
Learn about electric circuits, the flow of current, electrical resistance, and electrical power dissipation by exploring the operation of a flashlight.
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0
• Video

## Physics - Electric Current

by CK-12 //at grade
Explains the concept of current and its relationship to potential difference and resistance. Defines both alternating and direct current.
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2
• Video

## The Current

by CK-12 //at grade
Explains electric current, resistance, Ohm's law, and Kirchhoff's circuit laws.
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0
• Downloadable Quiz

## Electric Current and Circuits Quiz

by CK-12 //at grade
Reviews basic circuit design and the difference between conventional current and electron flow.
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• 0
• Real World Application

## Guess The Efficiency

by CK-12 //at grade
Learn about the efficiency of a light bulb.
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1
• Real World Application

## Batteries

by CK-12 //at grade
How do batteries operate?
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1
• Real World Application

## Controlling Traffic In Real Time

by CK-12 //at grade
Discover how traffic lights know when to change.
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0
• Real World Application

## Stunning Technology

by CK-12 //at grade
Learn how stun guns operate.
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0
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