Question

what is the maximum and minimum possible resistance can be obtained by combining three 3 ohm resistors​

Answer 1

Explanation:

the answer is explained in photo

Answer 2

Maximum and minimum resistance is 9 and 1 ohm respectively.

Given :

All resistor are of same resistance , R = 3 ohm.

We know, equivalent resistance is maximum when all resistance are in series.

Therefore, maximum resistance , $R_{max} =3+3+3=9\ ohm.$

Also, equivalent resistance is minimum when all resistance are in parallel.

Therefore, minimum resistance,

$\dfrac{1}{R_{min}}=\dfrac{1}{3}+\dfrac{1}{3}+\dfrac{1}{3}= 1 \ ohm.$

$R_{min}=1\ ohm.$

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Resistance.

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