MHT CET Physics question
Not in JEE Advanced syllabus
Two tangent galvanometers are connected in series. The first one has 50 turns and the second 250 turns. When a current is flowing through them, they are deflected to the same extent. The radius of the coil of the first galvanometer is 10 cm. The radius of the coil of the second galvanometer should be
Answer: (A)
Solution
Same current and same deflection need equal: , so
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