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WorksheetsPHY: Electrostatics
Total questions: 25
Worksheet time: 30mins
What direction are the electric field lines around a proton?
towards the charge
away from the charge
When a charged object contacts another object (one is usually a conductor), there is a transfer of electrons. How do you determine which object acquires the transferred electrons?
Always transfer from the bigger to the smaller object, to make it even
Transfer is based on the initial charge of the two objects
Transfer is based on how much electron affinity that each object has
Always transfer from the more negative to the more positive object
Why does the child's hair stick up?
The boy is grounded since he's at the bottom of the slide
He gained a charge from the slide, and since he's not grounded, his hairs have the same charge so they repel one another
He gained a charge from the slide, and since he's not grounded, his hairs have opposite charges so they repel one another
When hair is neutral, some have a positive side and some have negative side, so they will attract to each other, making it stand up
When a silver atom looses an electron, its net charge (in coulombs) is
+1
-1
+1,6 x 10-19
-1,6 x 10-19
which is the field for opposite charges
