ShmoopTube

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And here's your shmoop du jour brought to you by charging, charging as

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in electricity not as in maxing out credit card at the comic book store [Girl carrying a stack of comic books]

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although that is a fun way to spend an afternoon all right a student places two

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metal spheres next to each other so that they are tangent at one point the [Student carrying two metal spheres]

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student then charges a balloon with negative charge and places it near one

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of the spheres which of the following will occur select two answers and here

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are the choices...... all right conduction and induction are different we already know

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that since there are different words and all but well we just wanted to say it

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out loud the biggest difference is that charge by conduction requires physical [Zombie chasing group of student]

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contact in conduction if a negatively charged object touches a neutral object

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electrons move from the negative object in parting a negative charge to the [electrons moving to a neutral object]

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neutral object but also weakening the negative charge on the first one in

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induction there's no physical contact so the negatively charged object doesn't

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lose any electrons or any charge instead the negative charge repels negative

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particles in the neutrally charged object polarizing it since the [polarised charged particle]

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negatively charged balloon doesn't touch the spheres we know we're not dealing [negatively charged balloon near the two spheres]

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with conduction answer A) is wrong and answer B) is right this is charged by

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induction and as we just discussed charge by induction means the particles [Charges rearranging in a metal sphere]

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rearrange themselves so answer C) is also correct because the particles just

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rearrange themselves in the neutral spheres answer D) is incorrect there's no

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change in the overall charge of the system the particles have moved around

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but nothing has been added or taken away from the sphere so the net charge is the [Two spheres stood together]

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same well charging by induction is almost like magic you just wave a [magician on stage with negative and positive charged box]

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charged object near a neutral one and press those articles go nuts rearranging

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themselves maybe for our next trick we can make that credit card bill [girl makes credit card bill disappear]

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disappear before your mom finds it.

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