Wednesday, December 12, 2018

lateral thinking - French vs Italian resistance


I have computed that the French resistance is roughly 17% larger than the Italian one. Do you know how I did it?



Answer



Because ...



... the coloured bands on a resitor with the colours of the French flag, blue – white – red, indicate an electric resistance of 6,900 ohms, whereas the colours of the Italian flag, green – white – red, indicate a value of only 5,900 ohms.

The value of 6,900 ohms is 16.95% higher than 5,900 ohms.



No comments:

Post a Comment

classical mechanics - Moment of a force about a given axis (Torque) - Scalar or vectorial?

I am studying Statics and saw that: The moment of a force about a given axis (or Torque) is defined by the equation: $M_X = (\vec r \times \...