d.c. motor
 

d.c. motor problem 11


A generator uses the principle of electromagnetic induction.




Which change would increase the induced electromotive force (e.m.f.) in the coil?


  • increasing the number of turns in the coil


  • placing the magnets further apart


  • using a coil made from steel wire


  • reversing one of the magnets


 

main author and content editor: Daniel Owoyomi