Two Long Parallel Wires Carry Currents of 5

question 21

Multiple Choice

Two long parallel wires carry currents of 5.0 A and 8.0 A in the opposite direction. The wires are separated by 0.30 m. Find the magnetic force per unit length between the two wires.

• A)2.7 × 10^-5 N/m repulsive
• B)7.2 × 10^-5 N/m repulsive
• C)3.4 × 10^-5 N/m attractive
• D)2.7 × 10^-5 N/m attractive
• E)7.2 × 10^-5 N/m attractive

---

Definitions:

Straight-Line Method

A depreciation method where an equal amount of depreciation expense is allocated for each year of the asset's useful life.