Physics

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Three resistors having the same resistance value are wired in parallel. How does the equivalent resistance compare to the resistance value of a single resistor?


The equivalent resistance is thrice the value of a single resistor.

The equivalent resistance is the same as the value of a single resistor.

The equivalent resistance is one third the value of a single resistor.

The equivalent resistance is greater than the value of a single resistor.



I would think that the equivalent resistance would be half of the value of the resistor, but that isn't an option... Help me, please?

  • Physics -

    1/R(eq)=3/R
    R(eq)=R/3

  • Physics -

    new i = old i * 3

    new v = old v

    r = v/new i = v/3i = (1/3) old r

  • Physics -

    I think The equivalent resistance is one third the value of a single resistor man!

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