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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > The emf E and the internal resistance r of the battery shown in figure are 6 V and 2.5 Ω respectively. The external resistance R is 25Ω. The resistances of the ammeter and voltmeter are 5.0Ω and 225Ω respectively. (a) Find the readings of the two meters. (b) The switch is thrown to the other side. What will be the readings of the two meters now?

The emf E and the internal resistance r of the battery shown in figure are 6 V and 2.5 Ω respectively. The external resistance R is 25Ω. The resistances of the ammeter and voltmeter are 5.0Ω and 225Ω respectively. (a) Find the readings of the two meters. (b) The switch is thrown to the other side. What will be the readings of the two meters now?

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. In figure