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Resistance and Power - Technical MCQs

Q1:

A conductor's cross-sectional area in circular mils for onehalf.gif inch is:

A 500 cmils

B 100,000 cmils

C 1,000,000 cmils

D 500,000,000 cmils

ANS:C - 1,000,000 cmils

Given: radius of 1/2 inch then diameter equals 1inch which is equal to 1,000 mil. For Circular Mil, Area = d^2,

A= (1000mil)^2.
A= 1x10^6 CM.