kilohertz (kHz) is a unit which measures?
Correct answer: B. Electromagnetic radio wave frequencies
- A. Power used by a current of one ampere
- B. Electromagnetic radio wave frequencies
- C. Voltage
- D. Electric resistance
Explanation
A kilohertz equals 1,000 hertz and measures frequency, including the frequency of electromagnetic radio waves. Voltage, resistance and power use volts, ohms and watts respectively.
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