Suppose that you have a 680 Ω, a 720 Ω and a 1.20 kΩ resistor. (a) What is the maximum resistance you can obtain by combining these? (b) What is the minimum resistance you can obtain by combining these?

Explanation:

As the given data is as follows.

    ohm,     ohm,

    = 1200   (as 1 k ohm = 1000 m)

(a)   We will calculate the maximum resistance by combining the given resistances as follows.

      Max. Resistance =

                                  = ohm

                                  = 2600 ohm

or,                               = 2.6 ohm

Therefore, the maximum resistance you can obtain by combining these is 2.6 ohm.

(b)   Now, the minimum resistance is calculated as follows.

      Min. Resistance =

                                 =

                                 = ohm

Hence, we can conclude that minimum resistance you can obtain by combining these is ohm.

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