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When the upper tip of a magnetic dip needle is loaded with a small mass, the dip angle is found to drop from 45∘ to 30∘. If the total magnetic intensity at the place is 0.42 Oersted and the pole strength of the magnetic needle is 200 CGS units, the mass attached is x×10−3 g where x is _______.[sin15∘=0.2588;cos30∘=0.8660] |
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Answer» When the upper tip of a magnetic dip needle is loaded with a small mass, the dip angle is found to drop from 45∘ to 30∘. If the total magnetic intensity at the place is 0.42 Oersted and the pole strength of the magnetic needle is 200 CGS units, the mass attached is x×10−3 g where x is _______. [sin15∘=0.2588;cos30∘=0.8660] |
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