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Three unequal resistor in parallel are e...

Three unequal resistor in parallel are equivalent to a resistance `1` ohm If two of them are in the ratio `1:2` and if no resistance value is fractional the largest of three resistance in ohm is

A

4

B

6

C

8

D

12

Text Solution

Verified by Experts

The correct Answer is:
B
`(1)/(R_(1))+(1)/(R_(2))+(1)/(R_(3))=1`
`R_(2):R_(3)=1:2`
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