Question

The figure below shows a DC motor. Labe the parts B and S and Name the principle on which it works

• A. B → Carbon brushes, S → Split rings, Principle: Mechanical Effect of Electric current
• B. B → Carbon brushes, S → Split rings, Principle: Electromagnetic Induction
• C. B → Carbon brushes, S → Slip rings, Principle: Electromagnetic Induction
• D. B → Carbon brushes, S → Slip rings, Principle: Mechanical Effect of Electric current

Answer 1

The correct option is A

B → Carbon brushes, S → Split rings, Principle: Mechanical Effect of Electric current

B → Carbon brushes, S → Split rings,

Principle: Mechanical Effect of Electric current. When Current carrying conductor is placed in the magnetic field it experiences the force (Torque) and rotates.