Physics · Electrical Instruments
The value of an unknown current using a Cathode Ray Oscilloscope (CRO) is measured by finding the:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ratio of voltage measured across the unknown resistance to that unknown resistance itself
- 2ratio of voltage measured on CRO to resistance of Aquadag
- 3ratio of voltage measured on CRO to a known standard resistance✓
- 4ratio of voltage measured on CRO to resistance of the CRO
Correct answer
ratio of voltage measured on CRO to a known standard resistance
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