current electricity - eq resistance question
got an unbalanced wheatsone on reducing it. used star delta but am getting the wrong answer. correct answer: 63/164 R
43 Replies
@Gyro Gearloose
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.can you show what you did?
is the concept part right
i havent rechecked the calc
do we conisder the red parts junctions too
@ns
@ns sbt mein ans galat hai 9R/28 hoga
oh okay.. can u share ur soln once
will do in a while
black line is line of symmetry.
E and F become equipotential and so does A and B thus no current flows through the resistor connecting thim
remove them and ull get much simpler figure
now just apply folding symmetry
Didnt think about folding symmetry damn
ah okay.. nice
but soln bhi hai na
usme
there were obvious hints of symmetry but so many resistors confused me a bit
and what about the star delta thing i did
i didnt check that out
whats wrong in that
meine bhi lagaya tha star delta
1/12 ke 3 resistors aaye the
right
i got the same
but usse mera ans 22/59 kuch aa raha hai
black wale parallel mei lie and then star delta lagaya?
yeah
seems like a calc error
galat hai kya
either on your end or mine
ah okay
i got the same exact thing
sbt soln.. they used the method you said.. by folding symm
mil gyi galti
5/21 + 1/12 karo aa jayega
oh shi
thanks a bunch
lol
np
can u look at the power one
ill tag wait
yeah
wahin aa jao
ill check this ig
3R/4 nhi hoga/
?
Whats star method?
yeh eqn bhi galat hai
sbt ke method se bhi 9R/28 aaya
star delta conversion
search it up
btw @ns bhai puri sbt kar rhe kya
no im a neet aspirant lol.. i solve it for fun whenever i get time
i dont even have maths as a subject
ye meko bhi laga tha.. printing error
thanks for the help
ill solve it again tmrw and close it
bro jumped straight to sbt level 3 god damn
np
have a look at "RC circuit" doubt of mine if u get time
sure thing,.. but we haven't started capacitors yet. we did current electricity before capacitors toh RC will be taught in capacitors.
got it finally.. 9r/28
+solved @hardcoreisdead
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