The Current Density Is the Same in Two Wires

question 17

Multiple Choice

The current density is the same in two wires.Wire A has twice the free electron concentration of wire B.The drift speed of electrons in A is:

• A)twice that of electrons in B
• B)four times that of electrons in B
• C)half that of electrons in B
• D)one-fourth that of electrons in B
• E)the same as that of electrons in B

---

Definitions:

Average Variable Cost

The variable cost per unit of output, calculated by dividing total variable costs by the quantity of output produced.

Perfectly Competitive

Describes a market structure where numerous small firms compete against each other, and no single entity has market power to set the price of a homogeneous product.

Market Price

The price at which a good or service is offered in the marketplace, determined by supply and demand forces.

Marginal Cost

The increase in total cost that arises from producing an additional unit of output, reflecting the cost of producing one more unit.