Because resistors are expensive
Electricity and Magnetism
Level
3
What is the minimum number of \(15 \Omega \) resistors that are required to build a composite resistor of \(10 \Omega \)?
Challenge: Generalize the problem.
Assumption: You are only allowed connecting resistors in series and parallel obeying standard laws of combination.
by
Agnishom Chattopadhyay