St. Mary's H.S. Physics YouTube Channel

 

 

 

INduction - Charging w/o contact

 

Conduction and Induction - Flash
[ HTML5 ]
St. Mary's H.S.

 

 

 

[ Flash ]

No charge is transferred

Electrons redistributed

 

 

 

Case II - Induction w/ Negative Rod

 

 

 

 

Frame 1 - Neutral Electroscope

 

 

#p = #e-

 

 

 

 

Frame 2 - Rod comes near

 

Compare #p with #e-

[ Flash ]

#p = #e-

 

Electroscope is neutral

 

Knob (top) Positive

Leaves - negative

 

Frame 3
Rod Removed, Charges Return


Electroscope is neutral

 

 

 

 

 

Which diagram best represents the charge distribution on three neutral spheres when a positively charged rod is brought near sphere x, but does not touch it?

Jan. 2003 Regents

 

 

Choice 4

Electrons are attracted to rod

 

 

 

 

 

 

Why does a charged balloon stick to a wall?

 

 

 

 

 

"Which image

correctly shows the

electron distribution

of a negative balloon

touching a neutral wall?"

 

June 1996

 

 

 

Choice 3

 

 

 

 

Pith ball and negative rod

St. Mary's Physics YouTube Channel

School blocks YouTube? Use the file below.

Pith Ball And A Charged Rod.mp4

 

 

 

 

What charge(s)
could this ball have?

 

 

 

 

 

Negative or Neutral

 

 

 

 

 

 

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