Electricity and magnetism - Current Electricity-7

865

Soumyadeep Basu ·2013-06-27 22:40:41

(D).

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Akash Anand ·2013-06-27 05:18:13

Try this question

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Jeet Sen Sharma ·2013-06-27 10:50:11

and is d

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Dwijaraj Paul Chowdhury ·2013-06-27 17:06:24

D

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Sourup Nag ·2013-06-27 22:56:35

D

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486

Niraj kumar Jha ·2013-06-28 04:11:38

Ans is (d)

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Akash Anand ·2013-06-28 06:16:54

Good Work ...everyone...Any one post the solution as well

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Akash Anand ·2013-06-28 06:16:55

Good Work ...everyone...Any one post the solution as well

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Dwijaraj Paul Chowdhury ·2013-06-28 07:00:30

By wheatstone bridge principle the resistance between BE and CF will be nullified...so 3 R's in series =3R and two such series connection in parallel...so R=3 :.I=V/R
=3/3=1

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21

Hamza-Ul-Huda ·2013-07-01 06:30:11

the figure to this question represent(wheatstone) as shown below :

so I=V/R equivalent
=3/3
=1 ampere(Ans) (=d)

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Akash Anand You can simply say that point B&E as well as C&F are equipotential so we can simply ignore the resistances between them.
Upvote·0· Reply ·2013-07-01 06:32:55
Aditya Agarwal How can we say like that, that the current will divide equally and hence the potential will be the same.?
Upvote·0· Reply ·2013-07-01 09:15:12
Akash Anand Due to symmetry..we can say it.
Upvote·0· Reply ·2013-07-02 00:08:32
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535

Aditya Agarwal ·2013-07-02 06:08:07

then whats the difference in this and that?
why cant we say over here that i₁ = I - i₁, due to symmetry(same resistance immediately after the point of diversion?

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Aditya Agarwal ·2013-07-02 06:20:26

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Hamza-Ul-Huda ·2013-07-02 07:13:20

yes we can ...!!

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