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  4. Four resistors, 125 Ω, 150 Ω, 350 Ω, and 375 Ω, are connected to form four sides of a square. The resistors can be connected in any order. What is the maximum possible equivalent resistance (in Ω ) across the diagonal of the square?

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Q. Four resistors, $125 \,\Omega, 150 \,\Omega, 350 \,\Omega$, and $375\, \Omega$, are connected to form four sides of a square. The resistors can be connected in any order. What is the maximum possible equivalent resistance (in $\Omega$ ) across the diagonal of the square?

Current Electricity

Solution:

Considering resistors are connected as shown in figure below.
image
$\therefore R_{\text {eff } \max }=\frac{500 \times 500}{500+500}=250\, \Omega$