The emf induced in an ‘N’ turn coil is given by \( - N\frac{{d{\r – McqOptions

MCQOPTIONS

1.	The emf induced in an ‘N’ turn coil is given by \( - N\frac{{d{\rm{\phi }}}}{{dt}}\) the minus sign in this expression is due to:
A.	Ohm’s law
B.	Faraday’s law
C.	Ampere’s law
D.	Lenz’s law
Answer» E.

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