Physics A-Level
Heater
What Heater means in Physics A-Level, as defined for OCR.
Definition of Heater
Check what you remember
Read the wording for your board, then hide it and explain Heater in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A filament that is heated by a low-voltage supply and controls the number of electrons released and hence the tube current.
Topics that use Heater
- Nuclear fission and fusion (OCR A-Level)
Related terms
- Alpha and beta decay
- Barium
- Binding energy
- Binding energy per nucleon against nucleon number curve
- Chain reactions
- Characteristic X-rays from shell transitions
- Compton effect
- Computer reconstruction of attenuation data
Using Heater in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
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