Sahay Sir > Question Answers > NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions > Physics > Chapter 22 - Current Electricity > Two batteries of emf 4 V and 8 V with internal resistance 1 Ω and 2 Ωare connected in a circuit with a resistance of 9 Ω as shown in figure. The current and potential difference between the points P and Q are

Two batteries of emf 4 V and 8 V with internal resistance 1 Ω and 2 Ωare connected in a circuit with a resistance of 9 Ω as shown in figure. The current and potential difference between the points P and Q are

For a cell the internal resistance (r) of cell is the terminal potential difference is 2.2 V when circuit is open and reduces to 1.8 V when cell is connected to a resistance R = 5 Ω