What is thermionic emission and how does it occur?
Thermoionic Emissions

Interactive Video
•
Physics
•
12th Grade
•
Easy
keneilwe Pence
Used 1+ times
FREE Resource
4 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How are charged particles, such as electrons, deflected in an electric field?
Electrons are deflected opposite to the direction of the electric field, towards a positive plate.
Electrons are deflected in the same direction as the electric field, towards a negative plate.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can we deduce that the particles emitted during thermionic emission are electrons?
The particles emitted are not affected by magnetic field.
The particles emitted are repelled by a positive charged sphere
The particles emitted are attracted towards a north pole
The emitted particles are negatively charged, as shown by their deflection toward positive electrodes in electric fields.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the difference between electron current and conventional current?
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