physics

A wire of uniform thickness with a resistance of 27 ohm is cut into three equal pieces and are joint in parallel.find the resistance of the parallel combination.

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asked by archit
  1. R = 27Ohm/3 = 9 Ohms.










    r =

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    posted by Henry
  2. Correction:

    R1 = R2 = R3 = 27/3 = 9 Ohms, each.

    When connected in parallel:
    Re = 9/3 = 3 Ohms.

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    posted by Henry
  3. given:
    A wire of uniform thickness with a resistance =27 ohm
    find:
    equivalent resistance in parallel
    solution:
    resistance of each wire=27/3=9
    therefore when in parallel equivalent resistance=
    1/rp=1/9+1/9+1/9
    =3/9=1/3
    therefore rp=3 ohm

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