Two Pieces of Copper Wire Have the Same Length,but Wire

question 72

Multiple Choice

Two pieces of copper wire have the same length,but wire A has a square cross section of width s whereas wire B has a circular cross section of diameter s.Which of the following statements is true?

• A)The resistance of both wires is the same.
• B)The resistivity of both wires is the same.
• C)Both the resistance and the resistivity of A and B are the same.
• D)The resistance of A is greater than that of B.
• E)The resistivity of A is greater than that of B.

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Definitions:

Consumer Surplus

The disparity between the total cost consumers are inclined and able to bear for a good or service and the total cost they actually bear.

Consumer Surplus

The economic benefit consumers receive when they pay a price below what they were willing to pay, reflecting consumer satisfaction in economic transactions.

Consumer Surplus

The disparity between the ideal payment consumers are ready to make for a good or service and the real amount paid.

Total Expenditure

The overall amount of money spent by individuals, households, or an economy on goods and services over a specific period of time.