Dynamo is a device for converting

Dynamo is a device for converting 

(1) Heat energy into electrical energy 

(2) Mechanical energy into electrical energy 

(3) Magnetic energy into electrical energy 

(4) Chemical energy into electrical energy 


Answer: (2) A dynamo is a device for converting mechanical energy into electrical energy, esp. one that produces direct current. A dynamo is an electrical generator that produces direct current with the use of a commutator. Dynamos were the first electrical generators capable of delivering power for industry, and the foundation upon which many other later electric-power conversion devices were based, including the electric motor, the alternating-current alternator, and the rotary converter. A dynamo has the disadvantages of a mechanical commutator. Also, converting alternating to direct current using power rectification devices (vacuum tube or more recently solid state) is effective and usually economic.

Dynamo is a device for converting   (1) Heat energy into electrical energy   (2) Mechanical energy into electrical energy   (3) Magnetic energy into electrical energy   (4) Chemical energy into electrical energy

 

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