What is a machine that generates electricity called?

What is a machine that generates electricity called?

• A. Dynamo
• B. Battery
• C. Motor
• D. Transformer

Answer: (A)

A device that converts mechanical energy into electrical energy is called a dynamo, a type of generator. It works through electromagnetic induction: when its components move relative to a magnetic field, electrons are driven to flow, producing current. This is what generators do—turn motion into electricity. A battery stores chemical energy and supplies electrical energy without using mechanical input. A motor uses electrical energy to produce motion, not the other way around. A transformer changes the voltage of existing electrical energy and does not create new energy. So the dynamo is the one that generates electricity.

A device that converts mechanical energy into electrical energy is called a dynamo, a type of generator. It works through electromagnetic induction: when its components move relative to a magnetic field, electrons are driven to flow, producing current. This is what generators do—turn motion into electricity.

A battery stores chemical energy and supplies electrical energy without using mechanical input. A motor uses electrical energy to produce motion, not the other way around. A transformer changes the voltage of existing electrical energy and does not create new energy. So the dynamo is the one that generates electricity.