Faraday's Law: a Loop of Radius R = 3

question 29

Multiple Choice

Faraday's law: A loop of radius r = 3.0 cm is placed parallel to the xy-plane in a uniform magnetic = 0.75 T . The resistance of the loop is 18 Ω. Starting at t = 0, the magnitude of the field decreases uniformly to zero in 0.15 seconds. What is the magnitude of the electric current produced in the loop during that time?

• A) 0.79 mA
• B) 3.9 mA
• C) 1.7 mA
• D) 2.1 mA
• E) 0.20 mA

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Definitions:

Constant

A fixed value or term that does not change in mathematical equations or scientific experiments.

Friedman And Phelps

Economists who contributed to the understanding of the relationship between inflation and unemployment, challenging the Phillips Curve concept.

Expected Change

Anticipated variation in a condition or value, often used in the context of economic indicators or market trends.

Unemployment Rate

The percentage of the labor force that is jobless and actively seeking employment.