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Question

A galvanometer has a coil resistance R and a safe current of i. If it is to be converted into an ammeter with a range of n i, then the resistance to be connected is

A
R/(n-1) in series
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B
R(n- 1) in series
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C
R(n - 1) in parallel
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D
R/(n - 1) in parallel
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Solution

The correct option is A R/(n - 1) in parallel
S=igG(iig) (using the standard result)
S=iR(nii)
S=R(n1)

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