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Full scale deflection current for galvanometer is 1 Amp. What should be the value of shunt resitance (in $Ω$ ) so that galvanometer shows half scale deflection.

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Solution

Full scale deflection current for galvanometer is 1 Amp.the value of shunt resistance (in Ω) so that galvanometer shows half scale deflection $R_{s} = \frac{19}{2} \times S = 38 \times \frac{1}{2} \Rightarrow S = 2 Ω$

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