What Current Must Be Maintained in a Square Loop (50

question 60

Multiple Choice

What current must be maintained in a square loop (50 cm on a side) to create a torque of 1.0 N ⋅ m about an axis through its center and parallel to one of its sides when a magnetic field of magnitude 70 mT is directed at 40° to the plane of the loop?

• A) 66 A
• B) 89 A
• C) 61 A
• D) 75 A
• E) 37 A

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Definitions:

Price Ceiling

A government-imposed limit on how high a price can be charged on a product or service, intended to protect consumers.

Market Price

The amount of money a buyer is willing to pay and a seller is willing to accept for a good or service in a competitive market.

Shortage

A market condition in which the demand for a product or service exceeds its supply, often leading to higher prices.

Binding Price Ceiling

A government-imposed price limit on goods or services that is set below the market equilibrium price, leading to shortages.