Electrical Engineering - Magnetism and Electromagnetism - Discussion

Discussion :: Magnetism and Electromagnetism - General Questions (Q.No.24)


If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage

[A]. remains unchanged
[B]. reverses polarity
[C]. increases
[D]. decreases

Answer: Option C


No answer description available for this question.

Vani said: (Feb 23, 2012)  
The generated emf depends on the speed also because e=flux (no of conductors) (speed) (poles) /60a.

Aaa said: (Jun 17, 2015)  
How it come?

Tanjeet said: (Jan 22, 2016)  
e = (PNZ(flux))/60A).

David said: (Oct 20, 2017)  
Where did the 60 A come from? Please explain it @Tanjeet.

Swetha said: (Aug 7, 2018)  
Eg=Φ Z N P/ 60A..

Generated vg directly proportional to speed. So Eg increase N is also increase.

Pradeep Gowda said: (Apr 19, 2020)  
E= π*Z*N*P/60A.

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