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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A galvanometer has a resistance of 30 ohm and a current of 2 mA is needed to give a full scale deflection. What is the resistance needed and how is it to be connected to convert this galvanometer (a) Into an ammeter of 0.3 A range ? (b) Into a volmeter of 0.2 V range ?

A galvanometer has a resistance of 30 ohm and a current of 2 mA is needed to give a full scale deflection. What is the resistance needed and how is it to be connected to convert this galvanometer (a) Into an ammeter of 0.3 A range ? (b) Into a volmeter of 0.2 V range ?

A galvanometer has a resistance of G ohm and range of V volt. Calculate the resistance to be used in series with it to extend its range its range to nV volt.