4.28 A galvanometer coil has a resistance of 15 Ω and the meter shows full scale deflection for a current of 4 mA. How will you convert the meter into an ammeter of range 0 to 6 A?
4.28 A galvanometer coil has a resistance of 15 Ω and the meter shows full scale deflection for a current of 4 mA. How will you convert the meter into an ammeter of range 0 to 6 A?
4.28 Resistance of the galvanometer coil, G = 15 Ω
Current for which galvanometer shows full deflection, = 4 mA = 4 A
Range of ammeter has to be converted from 0 to 6 A, hence I = 6 A
A shunt resistor S is to be connected in parallel with the galvanometer to convert it to an ammeter. The value of S
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Physics Ncert Solutions Class 12th 2026
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