Answer to Question 2

 

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An inductor is made of a solenoid of 1200 turns of copper wire around a square former 2.0 cm 2.0 cm. The length of the solenoid is 5.0 cm. Calculate the inductance.

 

L = 4 p 10-7  H m-1 12002 4.0 10-4 m-2  = 0.014 H = 14 mH
                                    0.05 m