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A moving coil galvanometer can be conver...

A moving coil galvanometer can be converted into an ammeter by

A

introducing a shunt resistance of large value in series.

B

introducing a shunt resistance of small value in parallel.

C

introducing a resistance of small value in series.

D

introducing a resistance of large value in parallel.

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Explain sensitivity of moving coil galvanometer. Show with the help of a circuit diagram that how a moving coil galvanometer can be converted into an ammeter of given range. Write necessary mathematical relation. What is the resistance of ideal ammeter?

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A moving coil galvanometer is converted into an ammeter reads upto 0.03 A by connecting a shunt of resistance 4r across it and ammeter reads up 0.06 A , when a shunt of resistance r is used. What is the maximum current which can be sent through this galvanometer if no shunt is used ?

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