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Questions and Answers
How can the voltage of a Van de Graaff generator be increased?
How can the voltage of a Van de Graaff generator be increased?
- By decreasing the radius of the sphere
- By keeping the entire system in a vacuum
- By decreasing the pressure of the gas inside the container
- By increasing the pressure of the gas inside the container (correct)
What does electric potential represent?
What does electric potential represent?
- The amount of charge present in a system
- The strength of the electric field at a point
- The energy required to charge an object
- The ratio of electrical potential energy per charge (correct)
Where is the electric field strength greater around a group of charged particles?
Where is the electric field strength greater around a group of charged particles?
- Where field lines are closer together (correct)
- At points with lower potential energy
- At points with higher potential energy
- Where field lines are further apart
How do electrons on the surface of a conductor arrange themselves?
How do electrons on the surface of a conductor arrange themselves?
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What factors influence the potential energy of a compressed spring and a charged object?
What factors influence the potential energy of a compressed spring and a charged object?
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