Find the equivalent resistance

Electricity and Magnetism Level 3

Find the equivalent resistance between A & C.

2.40R 1.28R 1.38R None 5R

Akshat Sharda by Akshat Sharda , 21, India

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2 solutions

Chinmay Singh
Jun 12, 2015

just put everything in same plane, then it will a square with two diagonals of same resistance R

THEN we can see.. wheatstone bridge one diagonal will be eliminated as no current will pass through DEB... Now its just a simple circuit with 5R 45R and 2R all in parallel.. thats it.. gud luck

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Wheatstone bridge will make no flow from B to D but why not from E to both? I solved it with putting a voltage source and finding the current through node voltage method and it came up with 1.37652 which is still rounded to 1.38 but a little less than ur answer to support that there will be a flow

Mohamed Wafik - 6 years ago

Happy to solve my best friends question... First solved the 4 triangles individually and then solved it in parallel with square .And came 1.37435R which is approx to 1.38R.

1 Helpful 0 Interesting 0 Brilliant 0 Confused

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