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KITE VICTERS ONLINE CLASS 02-09-2021, , PHYSICS – X-PART-03 CLASS 21, , Stages of rotation of an armature coil while completing one rotation in, a magnetic field, , Stage 1 (angle of rotation 0 ,Time 0), ➢, , The plane of armature coil is perpendicular to the direction of magnetic field., , ➢, , The rate of change of Flux is zero., Induced current in the coil is zero., , ➢, , Stage 2 (angle of rotation 90 ,Time T/4), ➢ The plane of armature coil is parallel to the direction of magnetic field., ➢ The rate of change of Flux is maximum., ➢ Induced current in the coil is maximum., Stage 3 (angle of rotation 180 ,Time T/2), ➢, , The plane of armature coil is perpendicular to the direction of magnetic field., , ➢, , The rate of change of Flux is zero., Induced current in the coil is zero., , ➢, , page 1, , www.apluseducre.blogspot.com or Whatsapp 9746544422

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KITE VICTERS ONLINE CLASS 02-09-2021, , Stage 4 (angle of rotation 270 ,Time 3/4T), ➢ The plane of armature coil is parallel to the direction of magnetic field., ➢ The rate of change of Flux is maximum in the opposite direction., ➢ Induced current in the coil is maximum in the opposite direction., Stage 5 (angle of rotation 360 ,Time T), ➢, , The plane of armature coil is perpendicular to the direction of magnetic field., , ➢, , The rate of change of Flux is zero., Induced current in the coil is zero., , ➢, , Period T, The time taken by the armature coil for a full rotation is called the period, T., Time taken for half rotation (1800 ) is T/2., , Assignment, , * Find out the direction of current in the parts AB and CD of the coil ABCD if, the coil is in a closed circuit., , page 2, , www.apluseducre.blogspot.com or Whatsapp 9746544422