Which statement best describes Ohm's Law and how it is used to size a conductor for an aircraft circuit?

• A. I = V ÷ R; used to calculate current.
• B. V = I × R; rearrange to solve for I or R; use to determine current capability and insulation/fuse sizing.
• C. V = R ÷ I; used to determine conductor insulation color.
• D. V + I = R; used to compute resistance only.

Answer: (B)