Questions
The radius of the coil of a tangent galvanometer, which has 10 turns, is 0.1 m. The current required to produce a deflection of is
detailed solution
Correct option is B
B=BH tanθ⇒μ0ni2R=BH tanθ⇒i=2R.BH tanθμ0n=2 x 0.1 x 4 x 10-5x310 x 4π x 10-7=1.1 ATalk to our academic expert!
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If the angles of dip at two places are respectively, then the ratio of horizontal components of earth's magnetic field at the two places will be
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