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The resistance of metal is given by V = ...

The resistance of metal is given by `V = IR`, The voltage in the resistance is `V = (8 pm 0.5)V` and current in the resistance is `I = (2 +- 0.2)A`, the value fo resistance with its percentage error is

A

`(4 +- 16.25%) Omega`

B

`(4 +- 2.5%) Omega`

C

`(4 +- 0.04%) Omega`

D

`(4 +- 1%) Omega`

Text Solution

Verified by Experts

The correct Answer is:
A
`R = (V)/(I), 100xx (DeltaR)/(R) = [(DeltaV)/(V) + (DeltaI)/(I)] xx 100`
Resistance `= [R +- (Delta R)/(R) xx100]`
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