IIT JEE , AIEEE Forum - Physics , Electricity

magiclko

I'm facing troubles in problems of Inductance, can anyone get the concept of inductance both mutual and self explained here.... i'll be thankful!!

ashish_banga

whenever a circ. is closed or opened, the current increases or decreases. this causes a change in magnrtic flux and hence an induced e.m.f. is produced This is cald self induct.

similarly when two coils are placed near each other and current flowing is changed in first coil then e.m.f. is induced in second coil this is called mutual inductance

krish

When a current flows in a circuit, there is a magnetic field induced in the location of the circuit and thus there is a magnetic flux produced.....the change in current changes the magnetic flux of the circuit .....thus inducing an emf across the ends. This induction of emf due to flux of the same circuit is called self induction while the induction of emf due to change in magnetic flux of another circuit in the vicinity of its magnetic field is called mutual induction. In the second case , however , there are two circuits which are affected by the flux of each other and also flux of their ownself.Thus practically, no two circuits can have only mutual inductance when placed near to each other. if u find any problem , please reply.....

bhupesh

Dear
Self Inductance is due to the geometrical shape of the conductor it self i.e when you turn on the switch the building up current or if you connecting varying current produces magnetic field and varying nature of current produces varying magnetic field resulting EMF which is self induced EMF and which is due to the geometrical shape of the conductor or the inductance E = L ( di/dt )

Mutual inductance arises when two conductors are placed closed to each other

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