Three Coplanar Parallel Straight Wires Carry Equal Currents I to the Right

question 11

Multiple Choice

Three coplanar parallel straight wires carry equal currents I to the right as shown below. The current in the upper two wires is directed to the right, but the current in the bottom wire is directed to the left. Each pair of wires is a distance a apart. The direction of the magnetic force on the middle wire

• A) is up out of the plane of the wires.
• B) is down into the plane of the wires.
• C) is in the plane of the wires, directed upwards.
• D) is in the plane of the wires, directed downwards
• E) cannot be defined, because there is no magnetic force on the middle wire.

---

Definitions:

Floor Constraint

The minimum value that recognized revenue can fall to due to constraints in revenue recognition, ensuring that reported revenue is not understated.

Holding Gains

Represents the increase in value of an investment or asset that an entity holds, realized when the asset is sold for more than its purchase price.

Holding Losses

Financial losses incurred from holding onto an asset that has decreased in value over time.

Inventory Valuation

The method of calculating the cost of goods available for sale and determining the end inventory balance.