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14 October, 02:27

Alternating current on a power line oscillates at 60 Hz. Calculate the wavelength and determine whether transmission line effects are seen on a power line that is 1000 meters long. __/2

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  1. 14 October, 04:51
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    Wavelength = 5,000,000 m

    Explanation:

    Power line has extremely low frequency and produce and transmit magnetic and electric over long distance. The radiation from power line are electromagnetic radiation since it can be classified as Radiowave. Hence using the formula:

    Velocity of propagation=frequency

    * wavelength

    We use Velocity = c = 3 * 10 ^8 m/s

    f = 60Hz

    wavelength = 3 * 10^8/60

    Wavelength = 5,000,000 m

    We can ignore the transmission line effect when the line length is less than (1/50) wavelength or (1/20) wavelength.

    Seeing the transmission line length given is 1000m, we ignore the effect of transmission line as negligible
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Home » Engineering » Alternating current on a power line oscillates at 60 Hz. Calculate the wavelength and determine whether transmission line effects are seen on a power line that is 1000 meters long. __/2
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