1. Tardigrade
  2. Question
  3. Physics
  4. Which of the following statements are false? (refer figure below) <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/physics/1178cea79ad43b885d23d731f6a3299b-.png /> I. AC generator consists of a coil mounted on a rotor shaft. II. The axis of rotation of the coil is perpendicular to the direction of the magnetic field. III. The coil (called armature) is mechanically rotated in the uniform magnetic field by come external means. IV. The rotation of coil causes the magnetic flux through coil to change, so an emf is induced in the coil.

Q. Which of the following statements are false? (refer figure below)
image
I. AC generator consists of a coil mounted on a rotor shaft.
II. The axis of rotation of the coil is perpendicular to the direction of the magnetic field.
III. The coil (called armature) is mechanically rotated in the uniform magnetic field by come external means.
IV. The rotation of coil causes the magnetic flux through coil to change, so an emf is induced in the coil.

 194  161 Electromagnetic Induction Report Error

Solution:

An AC generator consists of a coil mounted on a rotor shaft. The axis of rotation of the coil is perpendicular to the direction of the magnetic field. The coil (called armature) is mechanically rotated in the uniform magnetic field by some external means.
The rotation of the coil causes the magnetic flux through it to change, so an emf is induced in the coil. The ends of the coil are connected to an external circuit by means of slip rings and brushes.