Which of the following statements is correct regarding electric generator?

I. It converts electrical energy into mechanical energy.

II. It works on the basis of electromagnetic induction. 

The correct answer is Only II.

Key Points

• An electric generator works on the principle of electromagnetic induction.
• The generator converts mechanical energy into electrical energy, not the other way around.
• Electromagnetic induction involves generating an electric current by changing the magnetic field surrounding a conductor.
• This principle was discovered by Michael Faraday in 1831.

Additional Information

• Mechanical Energy to Electrical Energy: The primary function of an electric generator is to convert mechanical energy into electrical energy using electromagnetic induction.
• Components of a Generator: Key components include the rotor (rotating part), stator (stationary part), and the armature (where the electrical output is generated).
• Types of Generators: Generators can be classified as AC (Alternating Current) or DC (Direct Current) generators based on the type of current they produce.
• Applications: Generators are widely used in power plants, portable power sources, emergency backup systems, and various industrial applications.
• Fleming’s Right-Hand Rule: This rule is used to determine the direction of induced current in a generator, where the thumb, forefinger, and middle finger are held perpendicular to each other representing motion, field, and current respectively.