Question

What is minimun resistance which can be made using 5 resistor each of 1/5 ohm

Answer 1

Answer:

minimum resistance is always when all are connected in parallel.

if 5 resistors of 1/5 ohm are connected in parallel, net resistance is going to be (5+5+5+5+5)^-1 = 1/25 ohm

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Answer 2

Answer:

we can obtain the minimum resistance by placinɡ all the ɡiven resistance in parallel combination

ɡiven that x₁=x₂=x₃=x₄=x₅= 1/5 ohm

total resistance(1/R)=5+5+5+5+5

=25=25ohm

R=1/25 ohm

Therefore the minimum resistance which can be made usinɡ 5resistor each of 1/5 ohm is 1/25 ohm