Physics - Electron Beams

Edexcel 360 Science 

P3 Topic 5

CGP Page 74

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In an electron Beam, when the heater heats the cathode in order to boil off electrons, what is this process called?
Thermionic Emission
1 of 4
What is the equation used to calculate the Kinetic energy of each electron?
Kinetic Energy (J) = Charge of electron (in Coulombs, C) x Accelerating Voltage (in Volts, V)
2 of 4
You can also calculate the size of the current (rate of flow of electrons) produced.
Current (l) = Charge (number of electrons, n x the charge of each electron, e) / Time, (t)
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In an x-ray generator the anode is made out of what?
Tungsten
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Other cards in this set

Card 2

Front

What is the equation used to calculate the Kinetic energy of each electron?

Back

Kinetic Energy (J) = Charge of electron (in Coulombs, C) x Accelerating Voltage (in Volts, V)

Card 3

Front

You can also calculate the size of the current (rate of flow of electrons) produced.

Back

Preview of the front of card 3

Card 4

Front

In an x-ray generator the anode is made out of what?

Back

Preview of the front of card 4

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