MIT Physics Demo -- Faraday's Cage

In the electric field of a Van de Graaff generator, an unprotected Ben Franklin feels electrostatic forces. However, when a metal cage surrounds him, he is completely shielded against any electricity or electrostatic force.

This is due to the fact that all charges in a conductor reside on the outer surface, and always rearrange themselves to cancel out the electric field in the interior.

See the original video and more on MIT TechTV here - http://techtv.mit.edu/videos/1965

Category:

Education

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• electricity
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• electromagnetism
• van degraaff

[dominick1290]

i wish i could get into this school

[paulnord]

Tesla would have been better. It's probably pretty hard to find a Tesla doll.

[robertgift]

Habe Ben TOUCHis Farafay Cage. Wanto see if his tinsel slightly moves.

[stevenquikshadow]

@HoneycombAgent they droun

[oOBubbleStreamOo]

Excellent!

[Fictionheart]

@gvsfgdf Other than your choice of language, you actually have a clue what you're talking about.

[AnthonyTaylor]

Is this what an overpriced tuition gets you?

[HoneycombAgent]

@gvsfgdf How do people die in bathtubs?

[xXsuzuki125Xx]

@gvsfgdf u sound like the biggest douche on the planet

[gvsfgdf]

People who do not understand electricity pis me off.... "How many volts can kill you?"... -__- STFU n00b..... The required current needed to kill someone is around 75mA over the heart. The electrical tension (volts) that can beat the bodies resistance and thus allow the current to flow is changing because the resistance of the body depends on many factors.