What is the reason behind the use of electromagnets instead of permanent magnets in power generators.
The permanent magnets become shiny with time.
The strength of permanent magnet increases with time.
The shape of permanent magnets is huge.
The strength of permanent magnet decreases with time.
What is the frequency of alternating current (AC) generated for distribution in India?
What is the speciality of a power generator?
Power generator converts only chemical energy into electrical energy.
Power generator converts any type of energy into electrical energy.
Power generator converts electrical energy into chemical energy.
Power generator converts electrical energy into mechanical energy.
Which one of the following is a type of power generator?
Power generators are used in the centres where large quantities of electricity is generated and is distributed.
Right Postive, Left Negative
- Right Negative, Left Positive
- There is actually no current.
- Can’t be determined
- Mechanical to electrical
- Electrical to mechanical
- Electrical to light
The middle finger in Fleming’s right-hand rule represents the direction of which quantity?
Motion of conductor
Flow of charges