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Sahay Sir > Question Answers > Cengage JEE Mains Physics by B.M Sharma > Chapter 20 - Heating Effects of Current and Instruments > A potentiometer arrangement is shows in Fig. 6.62. The driver cell has emf e and internal resistance r. The resistance of potentiometer wire AB is R.F is the cell of emf e/3 and internal resistance r/3. Balance point (J) can be obtained for all finite value of

A potentiometer arrangement is shows in Fig. 6.62. The driver cell has emf e and internal resistance r. The resistance of potentiometer wire AB is R.F is the cell of emf e/3 and internal resistance r/3. Balance point (J) can be obtained for all finite value of

If a shunt 1/10 of the coil resistance is applied to a moving coil galvanometer its sensitivity becomes