A potentiometer balances at 44 cm when a cell of internal resistance $1 \Omega$ is in the secondary circuit. To obtains the balancing point at 40 cm , the resistance to be connected parallel to cell is
- A$20 \Omega$
- B$10 \Omega$
- C$30 \Omega$
- D$5 \Omega$
✓ Correct answer: B
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