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A Galvanometer with a Coil Resistance of 40 Ω\Omega Deflects Full Scale for a Current of 2

Question 57

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A galvanometer with a coil resistance of 40. Ω\Omega deflects full scale for a current of 2.0 mA. What series resistance should be used with this galvanometer in order to construct a voltmeter that deflects full scale for 50. V?

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