What is the frequency of the third harmonic on a 60 Hz power distribution line?

What is the frequency of the third harmonic on a 60 Hz power distribution line?

• A. 20 Hz
• B. 60 Hz
• C. 180 Hz
• D. 300 Hz

Answer: (C)

To determine the frequency of the third harmonic on a 60 Hz power distribution line, one must understand the concept of harmonics in electrical systems. Harmonics are integer multiples of a fundamental frequency. In this case, the fundamental frequency is 60 Hz. To calculate the frequency of the third harmonic, you multiply the fundamental frequency by 3. So the calculation is: Third harmonic frequency = 3 × 60 Hz = 180 Hz. Therefore, the correct answer is 180 Hz, as this reflects the frequency that corresponds to the third harmonic in a system with a fundamental frequency of 60 Hz. This concept is crucial when analyzing signals in power systems, as harmonics can affect the performance and efficiency of electrical circuits.

To determine the frequency of the third harmonic on a 60 Hz power distribution line, one must understand the concept of harmonics in electrical systems. Harmonics are integer multiples of a fundamental frequency. In this case, the fundamental frequency is 60 Hz.

To calculate the frequency of the third harmonic, you multiply the fundamental frequency by 3.

So the calculation is:

Third harmonic frequency = 3 × 60 Hz = 180 Hz.

Therefore, the correct answer is 180 Hz, as this reflects the frequency that corresponds to the third harmonic in a system with a fundamental frequency of 60 Hz. This concept is crucial when analyzing signals in power systems, as harmonics can affect the performance and efficiency of electrical circuits.