The physics principle behind the carbon-fibre method is:

  1. the Doppler effect
  2. Snell's law
  3. resistance depends on length and cross-section of the conducting path (R = rho L/A)
  4. Archimedes' principle
Answer

C) resistance depends on length and cross-section of the conducting path (R = rho L/A)

Damage changes the effective L and A. SLO P-09-E-27 · Understanding

Physics MCQ · More Current Electricity MCQs · Practise