Question

Find the equivalent emf and internal resistance of the arrangement shown in figure.

Answer 1

Correct Answer - B
`E_(eq)=(Sigma(E//r))/(Sigma(1//r))`
`=((10//1)+(4//2)+(6//2))/((1//1)+(1//2)+(1//2))`
`7.5V`
`1/r=1/1+1/2+1/2`
`:. R=0.5Omega`