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  • A moving coil galvanometer of resistance 100Ωis used as an ammeter using a resistance 0.1Ω. The maximum deflection current in the galvanometer is 100A. Find the minimum current in the c

A moving coil galvanometer of resistance 100Ωis used as an ammeter using a resistance 0.1Ω. The maximum deflection current in the galvanometer is 100A. Find the minimum current in the circuit so that the ammeter shows maximum deflection

Option: 1

100.1mA 


Option: 2

1000.1mA 


Option: 3

10.01mA


Option: 4

1.01mA


Answers (1)

best_answer

\mathrm{V_{a b}=i_g \cdot G=\left(i-i_g\right) S}

\mathrm{ \therefore \quad i=\left(1+\frac{G}{S}\right) i_g }
Substituting the values we get,
\mathrm{ i=100.1 \mathrm{~mA} }

Posted by

Ritika Kankaria

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