Consider a cube of material of sides 1 cm with a resistance of 0.003 Ω between its opposite
faces. What is the resistance if the same volume of the material is drawn into a length of 50
cm with a uniform cross – section?
A) 0.003 Ω B) 0.15 Ω
C) 7.5 Ω D) None of these
If people do not believe that mathematics is simple, it is only because they do not realize how complicated life is.
Tobias Dantzig
Pure mathematics is the world's best game. It is more absorbing than chess, more of a gamble than poker, and lasts longer than Monopoly. It's free. It can be played anywhere - Archimedes did it in a bathtub.