A Long Solenoid (Radius = 3

question 24

Multiple Choice

A long solenoid (radius = 3.0 cm, 2 500 turns per meter) carries a current given by I = 0.30 sin(200 t) A, where t is measured in s. When t = 2.5 ms, what is the magnitude of the induced electric field at a point which is 4.0 cm from the axis of the solenoid?

• A) 9.3 × 10−³ V/m
• B) 8.0 × 10−³ V/m
• C) 6.7 × 10−³ V/m
• D) 5.3 × 10−³ V/m
• E) 1.9 × 10−³ V/m

Understand the basic principles of how monopolies determine their profit-maximizing level of output.

Identify the relationship between marginal cost (MC) and marginal revenue (MR) in maximizing monopolist’s profit.

Calculate the monopolist’s profits based on given demand and cost data.

Understand the concept of price discrimination and its impact on monopolist’s profits.

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