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5 problems tagged with Electric Charge in Electrostatics
P0779
Beginner Electromagnetism › ElectrostaticsDetermining Charge via Electrostatic Interactions
There are four charged objects: A, B, C, and D. Object A repels object B, A attracts C, and C repels D. Object D is known to have a positive charge.
P0780
Beginner Electromagnetism › ElectrostaticsCharging a Conductor Held by Hand
A person is holding a metal rod.
- Why does the metal rod not accumulate a net charge when rubbed?
- How can the metal rod be given a net charge?
P0781
Beginner Electromagnetism › ElectrostaticsInteraction with an Uncharged Conductor
A small, positively charged sphere is brought near an insulated, electrically neutral conductor.
- Does the sphere experience an attractive or repulsive force?
- What happens if the end of the conductor closer to the sphere is momentarily grounded?
- Instead of grounding, what happens if the conductor and sphere briefly touch?
P0782
Beginner Electromagnetism › ElectrostaticsNumber of Elementary Charges in a Total Charge
The elementary charge is $e \equiv 1.602\,176\,634 \times 10^{-19}\,\text{C},$.
P0799
Beginner Electromagnetism › ElectrostaticsElectrostatic Induction on Metal Blocks
Three identical, contacting metal blocks are placed on a plastic table. Two objects with a large positive charge are placed at the two ends of this row of metal blocks, close but not touching. Then, an uncharged insulating rod is used to separate the three metal blocks. After that, the positively charged objects are removed.
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