Induction - Positive Notes

3. Induction - Positive Rod

No charge is transferred

Electrons redistributed

Induction with a Positive Rod

Frame 1 - Neutral Electroscope

#p = #e-

Frame 2 - Rod comes near

Charge on electroscope?

#p = #e-

Electroscope is neutral

Charge of Knob (top)?

Negative

Charge of Leaves?

Positive

Frame 3 - Rod Removed,
Charges Return

Electroscope is neutral

Ex) What would happen to the leaves of this electroscope if a positively charged rod were brought near the top of the electroscope?

Electrons would be attracted
up from leaves toward + rod.

Leaves would become
more + and diverge more.

Ex) Positive rod near a neutral electroscope?

Choice 4
Electrons attracted
up towards + rod