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A galvanometer having 30 divisions has c...

A galvanometer having 30 divisions has current sensitivity of `20 mu A//"division"`. Find the maximum current it can measure.

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Current of galvanometer for full scale deflection.
`i_(g) = 30 xx 20 xx 10^(-6) A`
`= 6 xx 10^(-4) A`
to convert it into ammeter we connect shunt of value 'S' parallel to it.
`i_(g) . G= (i-i_(g)).S`
`6 xx 10^(-4) xx 5.0 = ( 1- 6 xx 10^(-4)).S`
`S= ( 0.003)/( 0.9994)= ( 30)/( 9994) Omega`
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