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In the given circuit, no current is passing through the galvanometer. If the cross sectional diameter of the wire `AB` is doubled, then for null point of galvanometer, the value of `AC` would be: A. `2X`B. `X`C. `(X)/(2)`D. `3X` |
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Answer» Correct Answer - B `L.C=(1)/(50)mm=0.02mm` `M.S.R=3mm` `C.S.R=31xx0.02mm=0.62 mm` Zero eror correction` = -0.12mm` So diameter `=3.50mm` |
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