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Galvanometer resistance from its full-scale current with a shunt and full-scale voltage with a series resistor

The same question, asked 2 times: 13 Apr 2023*, 6 Apr 2026 S2. Every wording below, oldest first.

Try each one first, then open its answer.

  1. Question 1

    13 Apr 2023

    24
    When a resistance of 5Ω5\Omega is shunted with a moving coil galvanometer, it shows a full-scale deflection for a current of 250 mA250\text{ }mA, however when 1050Ω1050\Omega resistance is connected with it in series, it gives full scale deflection for 25 volt. The resistance of galvanometer is____ Ω\Omega.

  2. Question 2

    6 Apr 2026 S2

    23
    A moving coil of a galvanometer when shunted with 2Ω2\Omega resistance gives a full-scale deflection for a current of 500 mA . When a resistance of 470Ω470\Omega is connected in series it gives a full-scale deflection for 10 V potential applied on it. The value of resistance of galvanometer coil is ____\_\_\_\_ Ω\Omega.