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14-01-2023
Physics

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A cell of E.M.F and internal resistance Connected in series with two external resistor A and B of 4 ohms and 2.5ohm respectively . When a high resistance Voltmeter was connected across A the reading was found to be 2v. when another resistor of 4ohms was connected parallel to A and B, the voltmeter reads 3v - Draw a circuit diagram of the two arrangements - Calculate the E.M.F and internal resistance of the cell

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