Uses of electrostatics OCR P4

OCR gateway additional science, Physics P4b Uses of electrostatics, please use and enjoy!

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What does a dust precipitator do?
Removes harmful particles from chimneys.
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Where is a dust percipitator needed the most?
Chimneys of factories & power stations.
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What is the purpose of a dust percipitator?
It stops soot from polluting the atmosphere.
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What is placed in the chimney?
A metal grid (or wires)
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What is the most important thing about the plates in the chimney?
They have the opposite charge to (nothing/grid/cylinder tube)
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What needs to happen for the dust particles to become charged?
They need to gain/ lose electrons
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How is the dust attracted to the plate?
Opposite charges attract.
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As the dust particles pass through object in chimney what happens?
They have the same charge as the object in chimney
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Other cards in this set

Card 2

Front

Where is a dust percipitator needed the most?

Back

Chimneys of factories & power stations.

Card 3

Front

What is the purpose of a dust percipitator?

Back

Preview of the front of card 3

Card 4

Front

What is placed in the chimney?

Back

Preview of the front of card 4

Card 5

Front

What is the most important thing about the plates in the chimney?

Back

Preview of the front of card 5
View more cards

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