Physics A-Level
Component protection
What Component protection means in Physics A-Level, as defined for OCR.
Definition of Component protection
Check what you remember
Read the wording for your board, then hide it and explain Component protection in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Keep the current small with a protective resistor, and avoid overheating the component by switching off between readings.
Topics that use Component protection
- Resistance (OCR A-Level)
Related terms
- Circuit design for measurement
- Current–voltage characteristics
- Data logging and graphing
- Forward and reverse bias
- Graph interpretation
- Light intensity as a variable
- Non-ohmic behaviour
- Ohm’s law
Using Component protection in the exam
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