A galvanometer has an internal resistance of 31 omega and


A galvanometer has an internal resistance of 31 Ω and deflects full scale for a 45-mA current.

a) Find the value of this resistor which makes an ammeter read currents up to 40 A?

b) Determine the value of this resistor which makes a voltmeter give a full scale deflection of 300V?

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Physics: A galvanometer has an internal resistance of 31 omega and
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