To is time period of oscillation of the needle in uniform horizontal m – InterviewSolution

1.	To is time period of oscillation of the needle in uniform horizontal magnetic field (BH) of earth. If another magnetic field is applied perpendicular to BH such that the needle deflects by 0 for its equilibrium. Now period of oscillation of needle is T. The relation between T and To isT^2=To^2cos©T = To cos©T = To /cos©T^2=To^2/cos©
Answer» To is time period of oscillation of the needle in uniform horizontal magnetic field (BH) of earth. If another magnetic field is applied perpendicular to BH such that the needle deflects by 0 for its equilibrium. Now period of oscillation of needle is T. The relation between T and To is T^2=To^2cos© T = To cos© T = To /cos© T^2=To^2/cos©

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