Question

The device which is used for converting mechanical energy into electrical energy is called:
(A) Electric motor
(B) Dynamo
(C) Transformer
(D) Battery

Answer 1

Hint : Electromagnetism is the field of physics in which the concepts are the combination of electricity and magnetism. Dynamos and generators work using complex phenomena of electromagnetism. The output energy in these devices is electrical energy
Complete step by step solution:
A dynamo is an electric generator that generates direct current through the use of a passenger. Dynamos was the first electric generator capable of supplying power to the industry, and on that basis, there were many more subsequent electrical conversion devices, including electric motors, current alternators, and rotary converters.
So, the device used to convert mechanical energy into electrical energy is called dynamo

Additional Information:
Dynamos and Generators convert mechanical rotation into electric power.
Dynamo - A device that generates electrical energy using electromagnets. It is also known as a generator, although the term generator usually refers to an "alternator" that generates electrical energy.
Generator - This term is commonly used to describe an alternative that generates AC power using an electromagnet.
Generators, dynamos and batteries are the three devices required to make / store large amounts of electricity for human consumption.

Note- A voltage is produced when a magnet moves in a coil of wire. This process is called electromagnetic induction.
It is not practical to generate large amounts of electricity with wire coils and magnets outside. Instead, the generator induced current by rotating a coil inside the magnetic field or by turning the magnet inside the coil. As it happens, a potential difference occurs between the ends of the coil that causes the current