current in XY

IIT JEE 2015 Forum › Electricity and magnetism questions › current in XY

the conductor XY has negligible resistance.

a) current will flow thru XY if Îµ1/R1 â‰ Îµ2/R2

B) current will flow thru XY if Îµ1=Îµ2

C) current will never flow thru XY .

d) current will always flow watever be the condition.

do ans with reason .

#Physics #Electricity and magnetism

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6 Answers

1

Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-03-25 09:03:47

c)

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greatvishal swami ·2009-03-25 09:05:29

well c wil the ans current will never flow

reason assume current i flows from x to y so same current i will come back frm y to x hence net curent by superposition is 0.

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kamalendu ghosh ·2009-03-25 09:10:09

I coming out of any 1 cell has to enter it as well....so complete paths are individual circuits....so nocurrent thru x y

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skygirl ·2009-03-25 09:10:16

great! thanx!

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virang1 Jhaveri ·2009-03-25 09:10:23

C)
Current will never flow.

Since using theorem of superposition there will be no current flowing thro

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Â°áƒ¦â€¢à¹“ÑÏ…Î ·2009-03-25 09:11:04

reason for c is dat currents will b confined to d two loops .......n they will b loop currents ..........

aisa q iit mein poocha gaya hai

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