Induced Electromotive Force
if the magnetic flux through a coil is changed, a voltage will be produced. This voltage is known as the induced emf.
There is a minus sign refered to as the EMF that is generated oppose the change of magnetic flux. For a single loop, the voltage generated is:
Induced EMF = - Change in the Magnetic flux / change in time
The equation is:
EMF = - ΔΦ /Δt
Where:
EMF: Electromotive force
ΔΦ: Change of the magnetic flux
Δt: change in time
let chage in magnetic flux be (b-a)
