The fundamentals of AC (Alternating Current) current are as follows:
Direction: AC current periodically changes direction, typically 50 or 60 times per second (Hz) in the electrical grid.
Waveform: The waveform of AC current is a sinusoidal wave, which means the voltage and current levels follow a sine function.
Voltage and Current: The voltage and current in an AC circuit are constantly changing in magnitude and direction.
Power: In an AC circuit, the power changes direction and magnitude in synchronism with the voltage and current. This means that the average power delivered by an AC source is zero over one complete cycle.
Phase: The phase of AC current refers to the timing relationship between the voltage and current in an AC circuit. The phase difference between voltage and current is an important factor in determining the amount of power delivered by an AC source.
RMS (Root-Mean-Square) Value: The RMS value of an AC waveform is the equivalent DC (Direct Current) value that would produce the same heating effect as the AC waveform. The RMS value is used to compare the magnitudes of AC and DC voltages and currents.
Impedance: Impedance is the opposition to AC current flow and is a complex quantity that includes both resistance and reactance. Impedance is different from resistance in DC circuits and has a frequency-dependent component.
Frequency:AC frequency refers to the number of cycles of the AC waveform that occur in one second and is typically measured in Hz. The frequency of the AC grid is 60 Hz in North America and 50 Hz in India & many other parts of the world.
(In Punjabi)
AC (ਅਲਟਰਨੇਟਿੰਗ ਕਰੰਟ) ਕਰੰਟ ਦੇ ਬੁਨਿਆਦ ਹੇਠ ਲਿਖੇ ਅਨੁਸਾਰ ਹਨ:
 | AC (ਅਲਟਰਨੇਟਿੰਗ ਕਰੰਟ) ਕਰੰਟ ਦੇ ਬੁਨਿਆਦ){kind=link}
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