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In Fig. 27-58, R1= R2, 4.00 Omega and R3...

In Fig. 27-58, `R_1= R_2, 4.00 Omega and R_3= 1.50Omega.` Find the equivalent resistance between points D and E. (Hint : Imagine that a battery is connected across those points).

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The correct Answer is:
`3.5 Omega`
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