The domestic electricity supply has a frequency of
Correct answer: B. 50Hz
- A. 150Hz
- B. 50Hz
- C. 100Hz
- D. 200Hz
Explanation
In most countries, the domestic electricity supply, also known as the mains electricity or grid power, has a frequency of 50Hz (50 cycles per second). This is the standard frequency for alternating current (AC) power distribution systems in many parts of the world, including Europe, Asia, and Africa.In some countries, like the United States and Canada, the domestic electricity supply has a frequency of 60Hz (60 cycles per second)
This question appeared on the KMU MDCAT 2023 (retake) paper, which you can sit online with every answer explained.
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About Phase of Alternating Current
Phase describes the position of an alternating voltage or current within its cycle and the phase difference between two sinusoidal quantities. The topic covers in phase signals, phase angle and lead or lag in resistive, inductive and capacitive circuits, rather than the amplitude or frequency of the supply.
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