Six identical resistors are connected as shown in the figure. The equivalent resistance will be: [2004]

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Solution

Q.
Six identical resistors are connected as shown in the figure. The equivalent resistance will be: [2004]

1 Maximum between P and R

2 Maximum between Q and R

3 Maximum between P and Q

4 All are equal

Ans.
(3)

Given resistance of each resistor R

$R_{P Q} = \frac{5}{11} R, R_{Q R} = \frac{4}{11} R, R_{P R} = \frac{3}{11} R$

$∴$ $R_{P Q} is maximum.$

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