Q7 of 35 Page 90

What is the minimum resistance which can be made using five resistors each of 1/5 Ω?

When each resistor of 1/5 Ω is connected in parallel:


1/R= 1/R1+1/R2+1/R3+1/R4+1/R5


1/R = 5+5+5+5+5


1/R = 25 Ω


R = 1/25 Ω

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