For a cell, the terminal difference is 2.2 V, when the circuit is open and reduces to 1.8…
Physics · Class 12 · CBSE — Current Electricity
For a cell, the terminal difference is 2.2 V, when the circuit is open and reduces to 1.8 V, when cell is connected to a resistance R = 5 \(\Omega\) . The internal resistance of cell r is:
- \(\frac{10}{9} \Omega\)
- \(\frac9{10} \Omega\)
- \(\frac{11}9 \Omega\)
- \(\frac 5 9 \Omega\)
Answer
(D) 5 9
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