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Current passing through galvanometer is 0.002A and resistance galvanometer is Rg = 50Ω. Find out shut resistance to convert it into ammeter of range 0.5A.(1) 0.5Ω(2) 0.2Ω(3) 0.7Ω(4) 0.9Ω |
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Answer» The correct option (2) 0.2Ω Explanation: Rs = IgRg/(I - Ig) = (2 x 10-3 x 50)/(0.5 - 2 x 10-3) = 0.31/0.498 = 0.2Ω |
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