discuss why it is relatively easy to change the amplitude of an AC voltage to a higher or lower value,but why it is difficult to change its frequency?
At high voltages (over 110kV), less energy is lost in electrical power transmission. Higher voltages mean lower currents, and lower currents mean less heat generated in the power line due to resistance. ... AC is also capable of powering electric motors.
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Answer:
At high voltages (over 110kV), less energy is lost in electrical power transmission. Higher voltages mean lower currents, and lower currents mean less heat generated in the power line due to resistance. ... AC is also capable of powering electric motors.