1.

In the above question, the tolerance when resistors are connected in parallels :

Answer»

<P>`10%`
`30%`
`20%`
`40%`

Solution :In parallel, `R_(p)=(R_(1)R_(2))/(R_(1)R_(2))`
`:.(DeltaR_(p))/(R_(p))xx100=(DeltaR_(1))/(R_(1))xx100+(DeltaR_(2))/(R_(2))xx100`
`+(Delta(R_(1)+R_(2)))/(R_(1)+R_(2))xx100`
`=10%+10%+10%=30%.`
THUS correct CHOICE is `(b)`.


Discussion

No Comment Found

Related InterviewSolutions