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innovation1
Joined: 13 Mar 2009
Posts: 13
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 01 Nov 2009 15:44 AN INDUCTOR |
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| HI.......... A CAPACITOR PASSES AC N BLOCKS DC..... SAME WAY OR ANY OTHER WAY WHT DOES AN INDUCTOR DO??????????????
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flatulent
Joined: 19 Jul 2002
Posts: 4877
Helped: 324
Location: Middle Earth
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01 Nov 2009 16:13 Re: AN INDUCTOR |
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| The inductor passes DC and blocks AC if its value is high enough.
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haker_fox
Joined: 24 Jun 2009
Posts: 51
Helped: 4
Location: Russia, Irkutsk
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02 Nov 2009 2:28 Re: AN INDUCTOR |
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| innovation1 wrote: |
| HI.......... A CAPACITOR PASSES AC N BLOCKS DC..... SAME WAY OR ANY OTHER WAY WHT DOES AN INDUCTOR DO?????????????? |
The inductor resistance is X = w * L, where w - angular frequency (rad/s) and L - inductance (H).
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micard
Joined: 14 Oct 2009
Posts: 21
Helped: 1
Location: Maastricht
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02 Nov 2009 13:09 Re: AN INDUCTOR |
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| haker_fox wrote: |
The inductor resistance is X = w * L. |
The reactance not resistance!
Impedance is an complex number Z where:
Z=R+jX
R - resistance
X - reactance
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Kazzam
Joined: 23 Jul 2007
Posts: 84
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02 Nov 2009 13:29 Re: BEHAVIOUR OF AN INDUCTOR vs CAPACITOR |
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| it stores energy for a longer period of time created by passing electric current through the inductor........
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Google
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02 Nov 2009 13:29 Ads |
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innovation1
Joined: 13 Mar 2009
Posts: 13
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02 Nov 2009 15:37 Re: BEHAVIOUR OF AN INDUCTOR vs CAPACITOR |
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| inductor stores energy..... so can it be used as a source to drive a circuit....
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Kral
Joined: 28 Mar 2005
Posts: 1182
Helped: 187
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02 Nov 2009 17:28 Re: BEHAVIOUR OF AN INDUCTOR vs CAPACITOR |
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innovation1,
The difference can be explained from the fundamental equations.
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For an inductor, v = Ldi/dt, Where V is the voltage across the inductior, L is the inductance, di/dt is the rate of change of current thru the inductor. For high frequencies, di/dt is a high value, therefore the voltage across the inductor is high. For DC, di/dt is zero, therefore the voltage across the inductor is zero.
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For a capacitor, i = C dv/dt, where i is the current thru the capacitor, C is the capacitance, dv/dt is the rate of change of voltage across the capacitor. For DC, dv/dt is zero. Therefore the current through the capacitor is zero.
Regards,
Kral
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haker_fox
Joined: 24 Jun 2009
Posts: 51
Helped: 4
Location: Russia, Irkutsk
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03 Nov 2009 1:21 Re: AN INDUCTOR |
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| micard wrote: |
| haker_fox wrote: |
The inductor resistance is X = w * L. |
The reactance not resistance!
Impedance is an complex number Z where:
Z=R+jX
R - resistance
X - reactance |
I just did want to explain how AC passes through the inductor. Of course I had to write "reactance". It's my mistake. Sorry!
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vipinsaini
Joined: 24 Aug 2009
Posts: 19
Location: DELHI(INDIA)
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07 Nov 2009 8:45 Re: BEHAVIOUR OF AN INDUCTOR vs CAPACITOR |
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For C:
X=1/W*C
W-->Angular Frequency
Where W=2*Pi*f*C
Condition (1)When we are applying AC
then for AC f=50Hz(india)
i.e.there will be some reactance
so Capacitor will pass the AC.
Condition(2)When we are applying DC
then for DC f=0(zero)
so the X will become infinite that's why due to so much high reactance the current will not flow through the CAPACITOR.
It means that CAPACITOR will block the DC Current.
[b]For L:
X=W*L
W-Angular frequency
where W=2*Pi*f*L
condition(1)When we apply DC to the inductor
then for AC f=0Hz
so the reactance will become zero that's why inductor will provide a smooth path to the DC Current.
Condition(2)When we are applying AC
then for AC f=50Hz(india)
i.e.there is reactance which will be more than the reactance(incase of DC).
So Inductor can't pass the AC Current.
It's the main basic for L & C.
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