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Decreases in number of turns of coil in tangent galvanometer is

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Decreases in number of turns of coil in tangent galvanometer is
A. to decrease sensitivity
B. to decrease resistance of galvanometer
C. to increase a field at centre of coil
D. can not be predicted
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1 Answer

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Correct Answer - A
`S=(cos^2theta)/(K)=(cos^2thetamu_0n)/(2a B_H)`
`therefore` As n decreases S decreases .
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