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Qn for electronics/physics people :)

2006-12-26 04:48:18 · 7 answers · asked by Anonymous in Science & Mathematics Engineering

the voltage across the inductor is:
V = L di/dt

now, if i = 0 (constant), shouldnt V be also 0 (according to the above equation)?

2006-12-26 05:30:36 · update #1

7 answers

Ever hear of ELI theICE man?

A clever way to remember the Voltage to current lead/lag relationships in reactive and inductive circuits.

ELI L for inductor E(Voltage) leads I(Current) by upto 90degrees

ICE C for capacitor I(current) leads E(voltage) by upto 90degrees.


Basically with a changing voltage (like a sine wave) applied to a coil there will be some point during the cycle where current will be at zero while voltage will be applied to the coil

2006-12-26 08:15:39 · answer #1 · answered by MarkG 7 · 0 0

Yes ,
it is possible as an inductor is a device used for storing energy in the form of magnetic field!!!!!!!!
so there is a voltage across an inductorgiven by
V= L d(i)/dt
what happens is that a "charged" inductor contains magnetic field
this field creates the potential difference across it's ends


if wanna knowin detail read further:
the magnetic field is always in motion which is only possible if and if there is a driving force behind it. this comes from the potential difference applied to it!

2006-12-26 04:56:49 · answer #2 · answered by mohit 2 · 0 0

Yes . If the Magnetic field associated with it changes, then there will be a emf generated in the inductor which will be propotional to the rate of change of flux linked with it. It would manifest as a voltage at the terminals of the inductor.

2006-12-26 04:54:42 · answer #3 · answered by topbakamuna 1 · 0 0

If the inductor is charged the voltage will remain as long as the terminals are not shorted.

2006-12-26 05:44:55 · answer #4 · answered by Billy Butthead 7 · 0 0

it would depend on the resistance of the inductor. Voltage is like a water hose. the valve is the resistance. the curent is the water flowing through the hose measure at one spot in the hose.

2006-12-26 04:55:32 · answer #5 · answered by rug 3 · 0 0

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2016-12-11 16:13:50 · answer #6 · answered by ? 4 · 0 0

No.

2006-12-26 13:25:33 · answer #7 · answered by Ray D 2 · 0 0

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