A Long Straight Wire on the Z-Axis Carries a Current

question 8

Multiple Choice

A long straight wire on the z-axis carries a current of 6.0 A in the positive direction. A circular loop in the xy-plane, of radius 10 cm, carries a 1.0-A current, as shown in the figure. Point P, at the center of the loop, is 25 cm from the z-axis. An electron is projected from P with a velocity of 1.0 × 10⁶ m/s in the negative x-direction. What is the y component of the force on the electron? (e = 1.60 × 10^-19 C, μ0 = 4π × 10^-7 T ∙ m/A)

• A) -1.0 × 10^-18 N
• B) +1.0 × 10^-18 N
• C) -2.0 × 10^-18 N
• D) +2.0 × 10^-18 N
• E) zero

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Definitions:

Total Surplus

The sum of consumer surplus and producer surplus, representing the total net benefit to society from the production and consumption of goods or services.

Quota

A government-imposed trade restriction that limits the number or monetary value of goods that can be imported or exported during a specific period.

Legally Exchanged

Refers to the process of trading goods, services, or financial instruments in accordance with laws and regulations.

Quota Rent

The earnings that accrue to license holders in a system where import quantity is limited by quotas; it represents the difference between domestic prices and world prices due to restricted supply.