What happens in a series circuit when more bulbs are added? (Example: I start out with a complete series circuit with 2 bulbs. Then I add in

Question

What happens in a series circuit when more bulbs are added? (Example: I start out with a complete series circuit with 2 bulbs. Then I add in several more wires and several more bulbs & bulb holders. Now I have a complete series circuit with 5 bulbs).

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Diễm Kiều 4 years 2021-07-14T06:03:26+00:00 1 Answers 9 views 0

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  1. thaiduong
    0
    2021-07-14T06:05:13+00:00
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    Answer:

    when we add elements in a series circuit the voltage across each element decreases

    Explanation:

    In a series circuit the current the whole circuit is the same, since there is only one path,

    resistance is the sum of the resistance of each element

              R_{eq} = ∑ R_i

    if we write ohm’s law

              V = i R_{eq}

    we substitute

              V = i ∑ R_i

             

    therefore the total voltage is

             V = ∑ i R_i = ∑ V_i

    With this expression we see that the voltage decreases as we place more elements in the series circuit.

    Specifically when we fear two elements the voltage across each element is

               V_i = V / 2

    when we have 5 elements the voltage across each element is

               V_i = V / 5

    therefore when we add elements in a series circuit the voltage across each element decreases

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )