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Published byAvery Heater
Modified over 2 years ago
And very SMART!
Bet you don’t know how to charge a pith ball by INDUCTION
What is a pithball?
A Styrofoam ball coated with graphite.
I told you I was very SMART!
Yes, charging by Induction...
Let’s charge the pith ball NET NEGATIVE by induction.
Oh No, Mr. Bill! Not Net Negative by Induction.
Sorry, Sometimes I just get carried away.
Charging by induction is the charging of an isolated conducting object by...
...momentarily grounding it while a charged object is nearby.
First we start with a NEUTRAL pith ball..
A neutral pith ball has an EQUAL number of
PROTONS ELECTRONS! and
We’ll now show a representative sample of POSITIVELY charged protons in our pith ball.
For the pith ball to be neutral there must be an equal number of electrons.
Remember we are charging the pith ball NEGATIVE by induction therefore we need a POSITIVE rod nearby.
Bring the POSITIVELY CHARGED rod close BUT don’t allow it to touch.
The electrons in the pith ball are attracted to the positive rod and move close to the rod.
Now touch the positive side of the pith ball with a neutral object.
This is called grounding.
Electrons from the neutral object flow into the positive side of the pith ball.
Remove the neutral source of electrons.
Remove the positively charged rod.
And now you have a NEGATIVELY charged pith ball!
Notice the electrons redistribute themselves.
The pith ball acquired a net charge that was OPPOSITE that of the charging object by:
Gaining electrons from another neutral object called a ground.
I luv physicks
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