Question

In circuit arrangement shown two cells supply a current $I$ to a load resistarre $R=9\Omega$. One cell has an emf $E_1=9V$ and internal resistance $r_1=1\Omega$ and another cell has an emf $E_2=6V$ and internal resistance $r_2=3\Omega$. The current are as shown,then

• A. $I_1=0.9A\text{and}{I}_2=0.5A$
• B. $I\cong 0.85A$
• C. The cell of emf $E_1$ is removed, current $I$ will be smaller.
• D. The cell of emf $E_2$ is removed, current $I$ will be smaller.

Answer 1

The correct option is B $I\cong 0.85A$

The correct answer should be B