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If each resistance in the given circuit ...

If each resistance in the given circuit has value 9W , the reading of the ammeter is (in A):

A

(E-V)R

B

`((E-V))/V R`

C

`(2(E-V)R)/E`

D

`(2(E-V)R)/R`

Text Solution

Verified by Experts

`E=V+ir=iR+ir=i(R+r)`….(i)
`V=IR`………(ii)
`EV=(R+r)/R=1+r/R implies r=((E-V)/V)R`
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