Two wires A and B of the same material: A is twice as long and has twice the diameter of B. The ratio RA : RB is:

  1. 2 : 1
  2. 4 : 1
  3. 1 : 1
  4. 1 : 2
Answer

D) 1 : 2

R propto Ld^2: 24 = 12. SLO P-09-E-13 · Application

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