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The resistance R = (V )/(i) , where V=...

The resistance ` R = (V )/(i) ,` where `V=(50 pm 2.0)V and I=(20pm 0.2)A.` The percentage error in R is `’x’%`
The value of 'x' to the nearest integer is `"_________"`

Text Solution

Verified by Experts

The correct Answer is:
5
From Ohm.s law `R = V/I R= 50/20 = 2.5`
`(DeltaR)/(R) xx100 =pm((DeltaV)/(V) +(DeltaI)/I)xx100`
`(DeltaR)/(R) xx100 =pm(2/50 +(0.2)/20)xx100`
`DeltaR%=5%`
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