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The resistance R= (V)/(I), where V= (100...

The resistance `R= (V)/(I)`, where `V= (100+-5.0) V` and `I=(10+-0.2)A`. Find the percentage error in `R`.

Text Solution

Verified by Experts

`(DeltaR)/(R )xx100 = +-((DeltaV)/(V) +(DeltaI)/(I))xx100`
`=+-[(5)/(100) +(0.2/10)]xx100=+-7%`
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Knowledge Check

  • If voltage V=(100pm5) V and current I=(10pm0.2) A, the percentage error in resistance R is

    A
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    B
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    C
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    A
    `8%`
    B
    `4%`
    C
    `20%`
    D
    `10%`

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