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Working of Electric Motor Video Lecture | Crash Course: Class 10

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FAQs on Working of Electric Motor Video Lecture - Crash Course: Class 10

1. How does an electric motor work?
Ans. An electric motor works by converting electrical energy into mechanical energy. It consists of a coil of wire called an armature that rotates within a magnetic field. When an electric current is passed through the coil, it creates a magnetic field that interacts with the magnetic field around the coil, causing the armature to rotate.
2. What are the main components of an electric motor?
Ans. The main components of an electric motor include the armature, commutator, brushes, and magnets. The armature is a coil of wire that rotates within the magnetic field. The commutator is a device that helps in reversing the direction of the current in the armature coil to maintain continuous rotation. Brushes are used to make contact with the commutator, and magnets provide the magnetic field.
3. How is an electric motor different from an electric generator?
Ans. An electric motor converts electrical energy into mechanical energy, while an electric generator converts mechanical energy into electrical energy. In an electric motor, a current-carrying coil experiences a force due to the interaction of magnetic fields, causing rotation. In contrast, an electric generator uses mechanical energy to rotate a coil within a magnetic field, inducing an electric current.
4. What are the advantages of using an electric motor?
Ans. There are several advantages of using an electric motor. Firstly, electric motors are more energy-efficient compared to other types of motors, resulting in lower energy consumption. They also provide precise control over speed and torque, making them suitable for various applications. Additionally, electric motors have a longer lifespan, produce less noise, and do not emit harmful gases, making them environmentally friendly.
5. Can electric motors be used in renewable energy systems?
Ans. Yes, electric motors can be used in renewable energy systems. Renewable energy sources such as wind turbines and hydroelectric power plants utilize electric motors to convert the mechanical energy from wind or flowing water into electrical energy. Electric motors are also used in solar tracking systems to adjust the position of solar panels for maximum sunlight absorption. By harnessing renewable energy, electric motors contribute to a cleaner and sustainable future.
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