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The potential of C is :...

The potential of C is :

A

51 V

B

0

C

`+3V`

D

69V

Text Solution

Verified by Experts

The correct Answer is:
D
By KVL in each branch
`v_(o)=(V_(1)/(R_(1))+(V_(2))/(R_(2))+(V_(3))/(R_(3)))/((1)/(R_(1))+1/(R_(2))+1/R_(3))`
`9=(3/1+(Vc)/(2)+0)/(1+1/2+1/(0.5))`
`(Vc)/(2)-3=9((1)/(2)+2)`
`(Vc)/(2)-3=9[(7)/(2)]`
`(Vc)/(2)=(63)/(2)+3`
Vc = 69 V
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