An Ideal Solenoid of Length 10 Cm Consists of a Wire

question 134

Multiple Choice

An ideal solenoid of length 10 cm consists of a wire wrapped tightly around a wooden core. The magnetic field strength is $4.0 \mathrm {~T}$ inside the solenoid. If the solenoid is stretched to 25 cm by applying a force to it, what does the magnetic field become?

• A) 1.6 T
• B) 10.0 T
• C) 20 T
• D) 4.0 T

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Definitions:

Objective Uncertainty

The state of having insufficient knowledge due to an inherently unpredictable environment or situation.

Contribution Margin

Contribution margin is the amount by which a product's sales revenue exceeds its variable costs, indicating the contribution of sales towards fixed costs and profits.

Break-even Point

The financial point at which total revenue equals total costs, resulting in zero net profit or loss.

Break-even Analysis

A financial calculation to determine the point at which revenue received equals the costs associated with receiving the revenue.