The total current I = I_{1} + I_{2} in a circuit is measured as I_{1} = 150 ± 1A , I_{2} = 250 ± 2A, where the limits of error are as standard deviations.

I is measured as

A. (400 ± 1.5) A

B. (400 ± 1) A

C. (400 ± 3) A

D. (400 ± 2.24) A

## Show Answer

Answer: D

Share your understanding of this question with the correct explanation.