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The magnetic field at the centre of the M.C.G. is 0.25 T. The coil has an area of 0.2 m^(2) and has 28 turns. If the sensitivity of the M.C.G. is to be increased by 25%, the number of turns of the coil should be _______. Assume all other things remaining constant.
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The current sensitivity of a galvanometer increases by 20%. If its resistance also increases by 25%, the voltage sensitivity will
The sensitivity of a physical balance is increased by the use of "________"
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NIKITA PUBLICATION-MAGNETIC EFFECT OF ELECTRIC CURRENT-MCQs (Sensitivity and accuracy of M.C.G.)
