As per the law of electromagnetic induction whenever the magnetic linkage of a coil changes a emf is induced in the coil.The emf denotes the the potential difference between two ends of the coil.what i am confused about is the value of potential of the ends of the coil with respect to earth.Symbolically let the ends of the coil placed in a changing flux be denoted by a and b.The potential of end a of coil with respect to earth be Vae and that of end b of coil be Vbe. The emf induced in the coil due to changing flux be denoted by Vemf.Then Vemf=Vae-Vbe=n*rate of change of flux, which is given by a well known fromula. But how to evaluate the value of Vae and Vbe? i.e if we put a voltmeter between a end of coil and earth what will it read. pls give your valuable guidance. thanks for ur time.
- posted
15 years ago