Question

The minimum and maximum resistance of 60 ohms and 30 ohms resipectively

Answer 1

Answer:

maximum resistance=90

minimum resistance=20

Explanation:

series and parallel

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Answer 2

Answer:20 and 90 respectively

Explanation:

Maximum resistance= R = 60 +30ohms

=90omhs

Mimimum resistance= 1 /R =1 /60 + 1 /30

=3 /60 =1 /20

R= 20