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Point charge  is defined as a charged object where the object is of negligible mass and size and takes up virtually no space.

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Point charge  is defined as a charged object where the object is of negligible mass and size and takes up virtually no space.

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Using the Interactive

The Coulomb's Law Interactive is shown in the iFrame below. There is a small hot-spot in the lower-right corner of the iFrame. Dragging this hot-spot allows you to change the size of iFrame to whatever dimensions you prefer.

Using the Interactive

This Interactive will open in a separate browser window on your device. Click the Launch Tool button to open the Interactive. Close the window to return to this page.

Try our simulation. And when you're done, follow it up with our Concept Checker to see how well you learned the concept.

Try our simulation. And when you're done, follow it up with our Concept Checker to see how well you learned the concept.

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The Coulomb/s Law Interactive allows learners to explore the force of attraction or repulsion between two charged objects. The quantity of charge on the objects can be varied by dragging a slider. And the objects can be dragged closer together or further apart. The distance between objects can be measured using a built-in measuring tool.

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Electrostatic Force Mini Lab *

*Inspired by Mr. Geoffrey Clarion of Rocklin High School and based on "Resistance in a Wire" by PhET

In this lab you will be able to quickly see how different factors affect the electrostatic force between two charged pith balls.

When you are ready to start the experiment, click on the begin button

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Electrostatic Force Mini Lab * *Inspired by Mr. Geoffrey Clarion of Rocklin High School and based on "Resistance in a Wire" by PhET In this lab you will be able to quickly see how different factors affect the electrostatic force between two charged pith balls.

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Coulomb’s Law | Physics | Interactive Simulation | CK-12 Exploration Series

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Learn how the placement of charges leads to electric field and electric potential patterns in nearby space using our interactive simulation.

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Grab a balloon to explore concepts of static electricity such as charge transfer, attraction, repulsion, and induced charge.