Calculate the total resistance

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  • #2
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What is RT? What is the total resistance?

Usually an answer is easier to check than to get - calculate voltages and currents and see if they work out.
 
  • #3
gneill
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Why are you taking ##R_1## and ##R_2## to be in parallel? Here's what your circuit looks like after your ∇ to Y transformation:

upload_2018-10-26_9-55-37.png
 

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  • #4
phyzguy
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Just to be clear, your 6.22 Ohm answer is clearly wrong for the reason outlines by gneill.
 
  • #6
gneill
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Much better!
 
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