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problem26_27

# problem26_27 - A 13 1 V 13 1 2 1 2 1 1 eq = Ω = ⇒ Ω =...

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26.27: a) Since all the external resistors are equal, the current must be symmetrical through them. That is, there can be no current through the resistor R for that would imply an imbalance in currents through the other resistors. With no current going through R , the circuit is like that shown below at right. So the equivalent resistance of the circuit is
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Unformatted text preview: . A 13 1 V 13 1 2 1 2 1 1 eq = Ω = ⇒ Ω = Ω + Ω =-total I R , A 5 . 6 2 1 leg each = = ⇒ total I I and no current passes through R . b) As worked out above, Ω = 1 eq R . c) , = ab V since no current flows. d) R does not show up since no current flows through it....
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