The diagram shows a Van de Graff generator. What type of charge builds up on the dome when the Van de Graaff generator

Van de Graff generator is used to generate the very high voltage direct current (D.C) using low current levels. A belt is connected to the metal brushes at the pulleys driven by motor. Belt acts as a rubbing cloth with metal brush. When belt moves upwards it carries the positive charge and it passes to the dome through another metal brush connected it at top. Therefore, dome accumulates positive charge results in acquiring high potential.

E M B I B E

Cambridge Lower Secondary Science Stage 9: Workbook>Chapter 9 - Electrostatics and Electric Currents>Test-style questions>Q 5

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Lower Secondary Stage 9

IMPORTANT

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The diagram shows a Van de Graff generator.

Which part of the Van de Graaff generator works like a rubbing cloth?

Important Questions on Electrostatics and Electric Currents

EASY

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Workbook>Chapter 9 - Electrostatics and Electric Currents>Test-style questions>Q 5

The diagram shows a Van de Graff generator.

Question Image
What type of charge builds up on the dome when the Van de Graaff generator

EASY

Lower Secondary Stage 9

IMPORTANT

Cambridge Lower Secondary Science Stage 9: Workbook>Chapter 9 - Electrostatics and Electric Currents>Test-style questions>Q 5

The diagram shows a Van de Graff generator.

Question Image

When someone standing on an insulator touches an uncharged dome and waits while the dome is charged up, their hair stands up on end. Describe and explain what is happening with the electric charges.