Electrical Engineering · Electrical Measurements
The operation of a zero-beat frequency meter is based upon which of the following?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Planck's law
- 2Faraday's law
- 3Heterodyne principle✓
- 4Ohm's law
Correct answer
Heterodyne principle
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