What is the primary reason for the operation of an electric motor?
Practice Questions
Q1
What is the primary reason for the operation of an electric motor?
Electromagnetic induction
Lorentz force
Coulomb's law
Ohm's law
Questions & Step-by-Step Solutions
What is the primary reason for the operation of an electric motor?
Step 1: Understand that an electric motor is a device that converts electrical energy into mechanical energy.
Step 2: Learn about the Lorentz force, which is the force experienced by a charged particle moving through a magnetic field.
Step 3: Recognize that when electricity flows through a wire (current-carrying conductor), it creates a magnetic field around the wire.
Step 4: Know that if this wire is placed in another magnetic field, the interaction between the two magnetic fields creates a force (the Lorentz force).
Step 5: This force causes the wire (or part of the motor) to move or rotate.
Step 6: Therefore, the primary reason for the operation of an electric motor is the rotation caused by the Lorentz force acting on the current-carrying conductors in a magnetic field.
