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Electrostatic Potential and Capacitance — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectrostatic Potential and Capacitance1 Mark
MCQ
What is the use of a Van de Graff generator?
  • A
    Van de Graff generator is used to create a large amount of current.
  • B
    Van de Graff generator is used to create a small amount of voltage.
  • C
    Van de Graff generator is used to create a large amount of static electricity.
  • D
    Van de Graff generator is used to create a small amount of resistance.
✓

Answer

  1. Van de Graff generator is used to create a large amount of static electricity.

Explanation:

Van de Graff generator is used to create a large amount of static electricity. A Van de Graff generator uses static electricity and a moving belt to charge a large metal sphere to a very high voltage. As the belt moves, electrons move from the rubber belt to the silicon roller, causing the belt to become positively charged and the roller to become negatively charged. As a result, it builds up positive charge.

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