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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Consider a circular as shows in Fig. (a). We want to measure the current i flowing in the circuit. For this we connect an ammeter of resistance RA as shows in Fig. (b). Find the percentage error in the current.

Consider a circular as shows in Fig. (a). We want to measure the current i flowing in the circuit. For this we connect an ammeter of resistance RA as shows in Fig. (b). Find the percentage error in the current.

The deflection in a moving coil galvanometer falls from 50 divisions to 10 divisions when a shunt of 12Ω is applied. What is the resistance of the galvanometer? Assume the main current to remain same.