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The value of the resistor, R(S), needed ...

The value of the resistor, `R_(S)`, needed in the dc voltage regulator circuit shown here, equals :-

A

`(Vo-V_(L))//nI_(L)`

B

`(Vi+V)//nI_(L)`

C

`(V_(1)+V_(L))//(n+1)I_(L)`

D

`(V_(i)-V_(L))//(n+1)I_(L)`

Text Solution

Verified by Experts

The correct Answer is:
D

`V_(i)-V_(L)=IR_(S)`
`V_(i)-V_(L)=(nI_(L)+I_(L))R_(S)`
`R_(S)=(V_(1)=V_(L))/((n+1)I_(L))`
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