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Inductance Notes

# Inductance Notes - Inductance Notes/Worksheet for PH...

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for PH 113 (Moloney) Inductance is defined as Inductance = (flux of magnetic field)/current Self inductance = L = (flux of magnetic field in circuit 1)/(current in circuit 1) Mutual inductance = M21= (flux of magnetic field in circuit 2)/(current in circuit 1) or by Mutual inductance = M12 = (flux of magnetic field in circuit 1)/(current in circuit 2) It is true that M12 = M21 Examples o The units of inductance are henries. Express henrys in terms of tesla. o A solenoid has 200 turns and is 0.50 m long. Its radius is 0.10 m, its current is 2.0 A. Calculate the magnetic field inside the solenoid on its axis . (The formula is B = u_o n I.) Calculate the total magnetic flux in the solenoid , including units. Calculate the inductance of this solenoid, in henries . o If this same solenoid were carrying a current of 3.0 A, the inductance would be the same 1.5 times greater 1.5 times smaller none of the above o Here we have calculated the a) self-inductance b) mutual inductance (say which it is) o This solenoid is surrounded by a thin coil of radius 0.15 m, and 100 turns Calculate the magnetic flux in the thin coil, due to the current in the solenoid (2A) Calculate the inductance which exists between the solenoid and the

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Inductance Notes - Inductance Notes/Worksheet for PH...

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