Two batteries of emf 4V and 8V and internal resistance of 1 ohm and 2 ohms respectively connected in a series with resistance if 9 ohms as shown in the figure. Calculate the current and potential difference between P and Q.
Two batteries of emf 4V and 8V and internal resistance of 1 ohm and 2 ohms respectively connected in a series with resistance if 9 ohms as shown in the figure. Calculate the current and potential difference between P and Q.
Applying Kirchhoff's voltage law
Potential difference across