Electronics - Diodes and Applications - Discussion

Discussion Forum : Diodes and Applications - General Questions (Q.No. 5)
5.
The dc current through each diode in a bridge rectifier equals:
the load current
half the dc load current
twice the dc load current
one-fourth the dc load current
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
16 comments Page 1 of 2.

Prabu r said:   3 years ago
Apply the Ohm's law. Some of all the currents are equal to the total current.

Shubham said:   5 years ago
AC - alternating current, its polarity will change with cycle (+ or -).

DC - Direct Current fixed.

Sangeetha said:   5 years ago
Anyone explain what is the difference between ac and dc?

Ammu said:   7 years ago
Please, anyone explain clearly.

Subash chandra pakhrin said:   9 years ago
In series configuration current is same, so during the positive half cycle of sine wave diode d1 and d3 will conduct through the load resister, so current will be same same thing commensurate for the the negative half cycle of the sine wave.

Shekhar said:   9 years ago
Dear, here input given to the diode is dc (not ac) that's why through the whole time period a pair of diode is forward biases and others in reverse biases. So current through pair of diode which is in forward biases is equal to load and others have zero.

Abhinav said:   9 years ago
Someone please explain.

Half the time current is flowing from one set of 2 diodes and the other two for the next half. So basically the current is available only for half time period for any diode. While current is available for whole time at load. In this manner isn't each diode carrying half of load DC current?

Ashraful islam said:   9 years ago
When d1 and d3 forward bias, this time full current flow between this diode and reverse bias this time full current flow between d2 and d4.

Ajay said:   1 decade ago
Those are connected in series thats why the same resistance available in all diodes.

Shreedhar said:   1 decade ago
First 2 diodes area connected in series and another 2 are also. But these 2 groups are connected in parallel. And the values of these diodes are selected such that the circuit should be balanced. Therefore load current is equal.


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