Electrical Engineering - Capacitors - Discussion
Discussion Forum : Capacitors - True or False (Q.No. 9)
9.
A capacitor blocks ac but passes dc.
Discussion:
6 comments Page 1 of 1.
Sai said:
6 years ago
Well said, Thanks @Nitesh.
Nitesh said:
9 years ago
Xc = 1/2 * pi * f * c.
In the case of DC, f is zero.
So, xc = max or infinity hence open circuit or no flow of current so blocks DC.
In the case of an AC, f not zero.
So there exist xc a finite value hence current passes through it and allows AC.
In the case of DC, f is zero.
So, xc = max or infinity hence open circuit or no flow of current so blocks DC.
In the case of an AC, f not zero.
So there exist xc a finite value hence current passes through it and allows AC.
(1)
Srinu kandula said:
1 decade ago
When capacitor blocks D.C supply only.
Santosh said:
1 decade ago
It only passes AC and blocks DC.
Ravi said:
1 decade ago
Explain it.
Sadananda said:
1 decade ago
Both ac and dc voltage blocks when the capacitor is start carrying.
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