SUNIL BATRA (41 YEARS IITJEE PHYSICS)|Exercise JEE Main And Advanced|209 Videos
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A substance is placed in a non uniform magnetic field. It experiences weak force towards the strong field. The substance is ________ type.
A magnetic needle is kept in a uniform magnetic field of induction 0.5xx10^(-4) tesla. It makes 30 oscillaitons per minute. If it is kept in a field of induction 2xx10^(-4) tesla. Then its frequency is
A short magnetic needle is pivoted in a uniform magnetic field of strength sqrt(3)T is applied to the needle in a perpendicular direction, the needle deflects through an angle theta , where theta is
A: A magnetize needle in a uniform magnetic field experiences a torque but no net force, however, an iron hail near a bar magnet experiences a force of attraction as well as torque. R: Bar magnet creates non-uniform magnetic field.
SUNIL BATRA (41 YEARS IITJEE PHYSICS)-MOVING CHARGES AND MAGNETISM-MCQs(d )