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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Figure shows a short magnet executing small oscillations in an oscillation magnetometer in earth’s magnetic field having horizontal component 24μT. The time period of oscillation is 0.10s. An upward electric current of 18A is established in the vertical wire placed 20cm east of the magnet by closing the switch S. Find the new time

Figure shows a short magnet executing small oscillations in an oscillation magnetometer in earth’s magnetic field having horizontal component 24μT. The time period of oscillation is 0.10s. An upward electric current of 18A is established in the vertical wire placed 20cm east of the magnet by closing the switch S. Find the new time

Two ferromagnetic materials X and Y have hysteresis curves of the shapes shown ( see figure )