When a resistance of 100  is connected in series with a gal vinometer of resistance R, its range is V. to double its range, a resistance of 1000  is connected in series. Find R a) 700 b) 800 c) 900 d) 100

Question ID - 150256 :- When a resistance of 100  is connected in series with a gal vinometer of resistance R, its range is V. to double its range, a resistance of 1000  is connected in series. Find R a) 700 b) 800 c) 900 d) 100

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Answer Key : (c) -
 (c) When a resistance of 100  is connected in series current, When a resistance of 1000  is connected in series, the its range double Current,   ……(ii) From Eqs. (i) and (ii)

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