Correct option is D
The armature of an electric motor typically consists of a soft iron core and a coil of wire. The soft iron core acts as a conductor that enhances the magnetic field generated by the current flowing through the coil, thereby increasing the motor's efficiency. The coil, which is wound around the soft iron core, carries the electric current that generates a magnetic field. Together, the core and coil enable the armature to produce torque and rotation in the motor. Magnets are part of the motor setup but not part of the armature itself.
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Additional Information:
- The armature includes a soft iron core to concentrate the magnetic field.
- Coils in the armature generate magnetic fields when current flows through them.
- The interaction of the armature’s magnetic field with external magnets produces torque.
- The armature rotates due to the magnetic force, creating mechanical motion.
- Magnets in a motor are separate from the armature and create a static magnetic field.
- Armatures are integral to converting electrical energy into mechanical energy.
- Soft iron core (i): Increases magnetic efficiency by focusing the magnetic lines.
- Coil (ii): Conducts current to create a magnetic field essential for rotation.
- Magnets (iii): Provide a fixed magnetic field, interacting with the armature’s magnetic field to produce motion.
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