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Himanshu posted an Question
June 14, 2020 • 04:46 am 30 points
  • IIT JAM
  • Physics (PH)

Electricity basic

Could anyone tell me reason behind why in series current is equal and in parallel potential difference is equal Also it is true for both resistor and capacitor.????

3 Answer(s) Answer Now
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    Dhairya sharma best-answer

    Current in a circuit is like water in pipes. Think of a tap as a resistor: the more you close it, the slower the water runs out, and the slower the water moves in from the pipes in the wall. The same volume of water is still moving through the tap. Now imagine you have two taps, say a main water-line tap, and a bathroom tap. Assuming all other taps in the house are closed, imagine the main water-line tap only allowing a little water through, then no matter how much you open the bathroom tap, the small amount of water allowed to run through the main tap will be the maximum allowed to run through the bathroom tap. But your question is a good one, because it asks why this happens. I believe the simple answer to that is that current is carried by moving electrons.

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    read it

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    ✌✌

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    impressive explanation ma'am ✌

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    Chandra prakash best-answer

    It’s the consequence of the definition of potential: it is a function of space that exist for irrotational forces (like the electric filed, in a neutral region of space), for which the work they do when running along a loop sums up to 0, and hence the work done from one point to another can be defined as the difference between the values of a “potential function” between the points and regardless of the path followed to go from one point to the other. Since things in parallel are plugged to the same two points, and since potential is a function of the points … they’ll see the same potential difference. For the same reason, in a series (than involves more points) the differences sum up.

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    what about the charge???

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    see my next comment dear

  • comment-profile-img>
    Dhairya sharma Best Answer

    no dear it's not same for capacitor and resistance see attached

    cropped1352479543293348050.jpg
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    mam i talking about flow of charge and voltage i know there formulas are different

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