Electric Potential

4 important questions on Electric Potential

What is a natural spot for the reference point in potential?

The natural spot would be infinity because then we can say that V=0 . However when ur formula blows up we use just another letter or whatever

Superposition princpel and ptential

Potential obeys the superposition pricniple.

When do you use the potential of a localized charge distributioN?

When it is easier to calulcate V first and then calcuate E. (ivetting possions equation)
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Potential and Electric field

Refions of a ostive charge are potential ills, regions of netagtibe charge  are potential valleys, and teh eelct field points downhull form plus to minus .

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