दिखाये गये परिपथ में, `R_(1)=1.0Omega,R_(2)=2.0Omega,E_(1)=2V` और `E_(2)=E_(3)=4V` हैं। बिन्दुओं 'a' एवं 'b' के बीच विभवान्तर लगभग (V में) हैं

Options

A. 2.7
B. 3.3
C. 2.3
D. 3.7

Answer

B

Explanation

`E_(eq)=((E_(1))/(2R_(1))+(E_(2))/(R_(2))+(E_(3))/(2R_(1)))/(1/(2R_(1))+(1)/(R_(2))+(1)/(2R_(1)))`
`=((2)/(2)+(4)/(2)+(4)/(2))/((1)/(2)+(1)/(2)+(1)/(2))`
`=(5)/(3)=(10)/(3)=3.3`