A Circular Loop of Wire Has Its Radius Reduced in Half

question 49

Multiple Choice

A circular loop of wire has its radius reduced in half in time Δt.A uniform magnetic field is at an angle of 60° to the plane of the coil,and the magnetic field doubles its intensity in the same time interval Δt.During this interval,what happens to the flux through the coil?

• A)It increases.
• B)It decreases.
• C)It remains the same.
• D)More information is needed to make this conclusion.

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Definitions:

Inventory Turnover

Inventory turnover is a ratio showing how many times a company's inventory is sold and replaced over a specific period, indicating the efficiency of inventory management.

Return on Equity

A measure of the profitability of a business in relation to the equity, calculated as net income divided by shareholders' equity, expressing the company's ability to generate profits from its shareholders' investments.

Net Profit Margin

It is a financial metric that indicates how efficient a company is at generating profit compared to its revenue, expressed as a percentage.

Gross Profit Margin

The difference between sales and the cost of goods sold, expressed as a percentage of sales, indicating the efficiency of a company in managing its production and labor costs.