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The resistance R = V//i, where V = 100 +...

The resistance `R = V//i`, where `V = 100 +- 5 V and I = 10+- 0.2 A`. What is the total error in `R`?

A

0.05

B

0.07

C

0.0529

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
`R=(V)/(I)rArr(DeltaR)/(R)xx100=(DeltaV)/(V)xx100+(DeltaI)/(I)xx100`
`=(5)/(100)xx100+(0.2)/(10)xx100=7%`
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