A galvonometer has a coil resitance of 460 ohms and a full scale deflection current of of 100^10*-6 A What shunt resistor is needed to convert this galv.. into an ammeter which has a full scale deflection current of 200 ^10*-3 A? What is the resitance of the ammeter when it is completed? What percentage of current flows through both Ig and Is?(adsbygoogle = window.adsbygoogle || []).push({});

I figured Rs at 230.115^10*-3 ohms. ANd Rt of 460.23 ohms. but I know my Rt should be in milli ohms????????????????/

Also without having a voltage how can I calculate the percentage of current flow?

I used

Rs=(Ig*rg)/Im-Ig)

and

Rt=Rs+Rm

am I going in the right direction????/

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# Homework Help: Ametersand Shunt Resistors

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