Electronics and Communication Engineering - Analog Electronics - Discussion
Discussion Forum : Analog Electronics - Section 1 (Q.No. 1)
1.
To prevent a DC return between source and load, it is necessary to use
Answer: Option
Explanation:
Capacitor offers infinite impedance to DC.
Discussion:
17 comments Page 1 of 2.
Arnab said:
10 years ago
Have some doubts. The options should include diode, optocoupler etc. Because as caps blocks dc, there will be no current from source to load either. The purpose of using caps in dc circuit is to provide stability i.e. parallel connection across loads.
Dharmendra said:
8 years ago
DC Return means, sometimes the circuit gets reserve current called leakage current. In order to prevent return/excess currents, we have to use like Diodes or capacitors across affected elements.
Shubham shukla said:
1 decade ago
Dc return replace by dc current and answer C is right because capacitor creates high reactance on low frequency current. Xc = 1/2piefc.
Amar said:
7 years ago
In a DC, the value of capacitive reactance is infinite because of frequency zero so in dc no return path is there.
Pallavi said:
8 years ago
@Pramod.
Total opposition offered by an AC circuit to flow of AC is called impedance.
Total opposition offered by an AC circuit to flow of AC is called impedance.
Dee said:
8 years ago
InDC circuit by putting a cap in parallel how it provides stability?
Rachana said:
7 years ago
capacitor blocks DC and allows AC,means it prevents the return of DC
Vikash said:
7 years ago
The capacitor will be polar type to use in between source and load.
Deepika d said:
9 years ago
Then how the capacitor allows dc to flow from source to load?
Chandru said:
6 years ago
Prevent means to avoid DC so capacitor block dc.
(2)
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