# Tag Info

0

A much simpler answer to this question is that the current induced in the transformer secondary windings (assumed not an 'autotransformer') derive from an application of Lenz's law, which is to say, when the magnetic field in the common iron core of the transformer is forced to collapse by current being reversed and transitioning through zero in the primary ...

-1

bcause the emf induced in the secondary is known to be back emf...which opposes in such a way to show it lik a spring when gets compressed..it bounces with opposite phase.yoga....

0

It is doubtful if Thevenin's eqv also supports transients/dynamics. Suppose the ïnternals of a battery include a resistance as is usual and also an inductance in series with it. Concept of ïmpedance does not hold as supply is DC, and the same cannot also be converted to an eqv Norton's. If the supply is AC and the "source" internals include a series ...

0

Many times this kind of problems becomes very simple just by redrawing the circuit in a more standard way. Have a look at this: Now I think you will have no problem to solve it!

0

The net resistance depends on the point where you have applied the potential difference. Indicating the direction of current is very useful. You can Use $[$ $($ $R_3$ series $R_4$ $)$ parallel $R_2$ $]$ to be $R_7$ Now Redraw the circuit and by naming the point with same potential as one point as I have done in my diagram. Helps a lot: Seems like I have ...

Top 50 recent answers are included