Converting Galvanometer to Ammeter: Resistance Wire Placement

AI Thread Summary
To convert a galvanometer with a resistance of 150 ohms and a full-scale deflection at 3 mA into an ammeter with a range of 0 to 6 A, a resistance wire must be added. The resistance wire, which is 60 cm long and has a resistance of 2 ohms, should be connected in parallel with the galvanometer to allow for the increased current range. The formula s = IgG/(I - Ig) is relevant for calculating the required length of the resistance wire. The discussion emphasizes the importance of proper wire placement to ensure accurate measurements. Ultimately, the correct configuration will enable the galvanometer to function effectively as an ammeter.
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Homework Statement



how will you convert a galvanometer of resistance 150 ohm giving a full scale deflection for a current of 3 milli ampere to a ammeter of range 0 to 6 ampere?a uniform rsistance wire of length 60cm and 2 ohm is given.find the length of the wire required?

Homework Equations



s = IgG/I-Ig
 
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Should we connect a piece of the resistance wire in series or in parallel with the galvanometer? Why do you think so?
 
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