Numerical - Resistance in parallel combination for given input resistances

Q.  If R1= 15Ω ± 2% and R2= 20Ω ± 2% are the resistance connected in parallel then the value of the resistance for the parallel combination is
- Published on 03 Nov 15

a. 8.57Ω± 2%
b. 8.57Ω± 4%
c. 8.57Ω± 3%
d. 8.57Ω± 2.5%

ANSWER: 8.57Ω± 2%

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