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CBSE Class 12-science Answered

A battery is connected between two points A and B on the circumference of a uniform conducting ring of radius r and resistance R. one of the arcs AB of the ring subtends an angle ? at the centre. the value of the magnetic induction at the centre due to the current in the ring is (a)zero, only if ?=180 (b)zero for all values of ? (c)proportional to 2(180o-?) (d)inversely proportional to r
Asked by Shashank Shekhar | 09 Aug, 2011, 03:17: AM
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