Induced Voltage Of Coil Immersed In A Uniform Magnetic Field

Induced Voltage Of Coil Immersed In A Uniform Magnetic Field
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Induced Voltage Of Coil In A Magnetic Field
A coil having 100 turns is immersed in a magnetic field that is varing uniformly from 80 mWb (milliWeber) to 30 mWb in 2 seconds. Determine the induced voltage in the coil.

The string:
S₇P₃A₃₂ (Force - Push).
The math:
Induced Voltage Of A Coil In A magnetic field
Pj Problem of interest is of type force. Voltage problems are force problems
Change mWb to Wb:
So, 80 mWb = 10^-3 x 80 Wb;
And 30 mWb = 10^-3 x 30 Wb;
Faraday' Law for an N-turn coil:
Induced voltage e = -Ndφ/dt.
And magnetic field is varying uniformly
So, e = - [10^-3x(80 -30)x10²] /2 = -2.5 V.

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