A Rod (Length = 10 Cm) Moves on Two Horizontal

question 1

Multiple Choice

A rod (length = 10 cm) moves on two horizontal frictionless conducting rails, as shown. The magnetic field in the region is directed perpendicularly to the plane of the rails and is uniform and constant. If a constant force of 0.60 N moves the bar at a constant velocity of 2.0 m/s, what is the current through the 12-Ω load resistor?

• A) 0.32 A
• B) 0.34 A
• C) 0.37 A
• D) 0.39 A
• E) 0.43 A

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Definitions:

Total Surplus

The sum of consumer and producer surplus; represents the total net benefit to society from the production and consumption of a good or service.

Deadweight Loss

Economic efficiency is lost when the balance for a good or service is either not met or unattainable.

Tariff

A tax imposed on imported goods and services to regulate trade, increase government revenue, or protect domestic industries.

Consumer Surplus

The variance between the sum consumers are inclined and can afford to pay for a good or service and the sum they genuinely pay.