# Ac analysis

amaresh92
greetings,

consider a wire which is subjected to AC supply.now consider a point X anywhere on wire.
now what will be the potential of that point during the positive and negative halfcycle of sinusoidal AC?what will be the direction of current?
thanks

kevs926
not only you need X, you also need time. then you need the graph of the ac source

Mentor
greetings,

consider a wire which is subjected to AC supply.now consider a point X anywhere on wire.
now what will be the potential of that point during the positive and negative halfcycle of sinusoidal AC?what will be the direction of current?
thanks

What do you think? Why don't you draw a sketch of an AC voltage source driving a resistor divider. Sketch the AC waveforms -- what do they show?

Naty1
An easy way to answer your question is to consider that at the point some distance from the source, the voltage (potential) will be exactly like the source voltage, just delayed a tiny bit in time to account for the finite speed of the voltage transmission...assuming the wire is a few inches or feet not tens of thousands of miles...so you have answered your own question in your post...

amaresh92
What do you think? Why don't you draw a sketch of an AC voltage source driving a resistor divider. Sketch the AC waveforms -- what do they show?

what kind of thing the voltage?

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ssana
You can check the rms values of AC voltages. Suppose if you have 220Vrms than it means your AC waveform is a sine wave having positive peak of 311 volts and negative peak of 311 volts. This means peak to peak voltages are 311+311=622 volts.
Peak Voltage = RMS Voltage x square root of 2
Thanks