Question

A galvanometer has a full scale current of 200 mA and an internal resistance of 500...

A galvanometer has a full scale current of 200 mA and an internal resistance of 500 mΩ.

a) Find the resistance needed to make the galvanometer into an ammeter with a full scale current of 5 A.

b) Find the resistance needed to make the galvanometer into a voltmeter with a full scale voltage of 10 V.

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Answer #1

answer (a) : 20.83 mili-ohm (to be added in parallel combination)

answer (b): 49.5 ohm (to be added in series combination)

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