Explain how potentiometer is used to compare emf of two cells with suitable circuit diagram
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Draw a circuit diagram to compare the emf of two primary cells. Write the formula used. How can the sensitivity of a potentiometer be increased. OR. Draw the circuit diagram of potentiometer which can be used to determine the internal resistance (r) of a given cell of emf (E). Explain with the help of this diagram a method to find the internal ...
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