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Questions  

An ammeter of range 5 A is to be converted into an ammeter of range 10 V. If the resistance of ammeter be 0.1 Ω, then what resistance should be connected in series with it

a
1.1 Ω
b
1.9 Ω
c
2.1 Ω
d
4.9 Ω

detailed solution

Correct option is B

We know that R=Vi−G=105−0⋅1=1⋅9Ω

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Similar Questions

In the arrangement shown, initially switch S is open and reading of the ammeter is 2.5 A. What will be the reading of the ammeter after the switch S is closed?


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