The resistance of a galvanometer coil is 25.0 Ω, and the current required for full-scale deflection is 500 mA. (a) Show in a diagram how to convert the galvanometer to an ammeter reading 20.0 mA full scale, and compute the shunt resistance. (b) Show how to convert the galvanometer to a voltmeter reading 500 mV full scale, and compute the series resistance.

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