Asked by samantha
What is the (a) maximum and (b) minimum total resistance value that can be obtained using three resistors whose values are 2.0 ohms, 4.0ohms and 6.0 ohms? The resistors can be used individually, in pairs, or all three at once.
Is this a trick question? Is the answer 12 and 2?
Is this a trick question? Is the answer 12 and 2?
Answers
Answered by
bobpursley
for minimum resistance, put them in parallel. Parallel resistance is given
1/Rt=1/2+1/4+1/6=(6+3+2)/12
Rt=12/11 ohm
1/Rt=1/2+1/4+1/6=(6+3+2)/12
Rt=12/11 ohm