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Considering the earth as a short magnet with its centre coinciding with the centre of earth, show that the angle of dip phi is related to magnetic latitude lambda through the relation tan phi=2 tan lambda

If the following interchanges are made in signs and numbers, which equation would be correct? चिन्हों और अंकों को बदलने पर निम्नलिखित में से कौन सा समीकरण सबसे उचित है ? Interchanges: Signs: div and - Numbers: 15 and 5

If the following interchanges are made in signs and numbers, which equation would be correct? / चिन्हो और अंकों को बदलने पर निम्नलिखित में से कौन सा समीकरण सबसे उचित है ? Interchanges: Signs: div and - Numbers: 15 and 5

A bar magnet is put on the hanger of oscillation magnetometer and is made to oscillate in earth's magnetic field. Frequency of oscillation of bar magnet is found to be 3 Hz at a place where horizontal component of earth's magnetic field is 25 muT . Now a short magnet is placed to the north of magnetometer in such a manner that its North Pole points towards north. Distance of short magnet from the bar magnet hanging inside the magnetometer is 1 m. Frequency of oscillation now becomes 6 Hz. What is magnetic moment of short magnet?