Induced Voltage Of Coil Immersed In A Uniform Magnetic Field

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Induced Voltage Of Coil Immersed In A Uniform 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**:

S_{7}P_{3}A_{32} (Force - Push).
**The math**:

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^{-3}x(80 -30)x10^{2}] /2 = -2.5 V.

Math

The *point* **.** is a mathematical abstraction. It has negligible size and a great sense of position. Consequently, it is front and center in abstract existential reasoning.

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