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The resistance is R = (V)/(I) where V = ...

The resistance is `R = (V)/(I)` where `V = 100 pm 5` Voits and `I = 10 pm 0.2` amperes. What is the total error in R ?

A

`5%`

B

`7%`

C

`5.2%`

D

`((5)/(2))%`

Text Solution

Verified by Experts

The correct Answer is:
B
`R= (V)/(I) rArr (Delta R)/(R ) = (Delta V)/(V) + (Delta I)/(I)`
`rArr (Delta R)/(R ) xx 100 = ((5)/(100)xx 100 + (0.2)/(10) xx 100) = 7%`
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