A D.C. generator works on the principle of____________?
Correct answer: C. Faraday's law of electromagnetic induction
- A. Lenz's law
- B. Ohm's law
- C. Faraday's law of electromagnetic induction
- D. none of the above
Explanation
A generator produces emf when conductors cut magnetic flux, as described by Faraday's law of electromagnetic induction. Lenz's law only gives the direction opposing the change, not the basic generation principle.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Electrical Machines
1,061 free Electrical Machines MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electrical Machines questions
A series generator can self-excite:______________?
The frame of an induction motor is usually made of____________?
The shaft of an induction motor is made of_____________?
The open circuit voltage of a compound generator is 250 V. At full load the terminal voltage____________?
The terminal voltage of a series generator is 150 V when the load current is 5 A. If the load current is increased to 10 A, the terminal voltage will be____________?
A shunt generator can self-excite:_________________?