22 Feb 2019

What is the total current in the circuit?

tZcW-IMG_20190221_142903.jpg

Is it 4.9A or 6.6A ?

There are three sections 1-2, 2-3, 1-3 and tapping is done in series.    

What is the total current ?

Mohit Patil

Mohit Patil

Computer Science
22 Feb 2019

6.6A is the right answer. 

22 Feb 2019

can you explain


22 Feb 2019

@Vontari Keerthana - Better approach would be to explain how you arrived at two different answers. Could you give it a try?

22 Feb 2019

As they are in series I1 and I3 adds.

But as there is tapping im a little bit confused.

So can you help me out of it.

23 Feb 2019

@Kaustubh Katdare  please suggest what is the correct answer and complete solution.


I have got 4.9A, but my friend is saying that it may be 6.6A.


23 Feb 2019

@Mohit Patil Thanks for your answer

23 Feb 2019

@Vontari Keerthana , you were right.  The tapping at the middle two resistors joining the middle of the two battery banks can be ignored because there is no potential difference between the two ends of the wire.

Therefore, the total current will be the sum of the currents in the two parallel lines.

The current through the two resistors in series will be 31/(9.05+9.05)=1.713 A, the current in the other line is 31/9.5=3.26 A totaling 4.976 A.

23 Feb 2019

Thank you sir @Ramani Aswath 

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