The coil of a certain galvanometer has a resistance of 75.3; its needle shows a full scale
Question:
The coil of a certain galvanometer has a resistance of 75.3Ω; its needle shows a full scale deflection when a current of 1.62 mA passes through the coil.
(a) Determine the value of the auxiliary resistance required to convert the galvanometer to a voltmeter that reads 1.00 V at full-scale deflection.
(b) Should this resistance be connected in series or in parallel with the galvanometer?
(c) Determine the value of the auxiliary resistance required to convert the galvanometer to an ammeter that reads 50.0 mA at full-scale deflection.
(d) Should this resistance be connected in series or in parallel?
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Step by Step Answer:
a The current in the galvanometer should be 162 mA when the potential difference across the ...View the full answer
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Related Book For 
Fundamentals of Physics
ISBN: 978-0471758013
8th Extended edition
Authors: Jearl Walker, Halliday Resnick
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