To Increase the Current Density in a Wire of Length

question 24

Multiple Choice

To increase the current density in a wire of length and diameter D, you can

• A)decrease the potential difference between the two ends of the wire.
• B)increase the potential difference between the two ends of the wire.
• C)decrease the magnitude of the electric field in the wire.
• D)heat the wire to a higher temperature.
• E)combine both (b) and (d).

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Definitions:

Net Income

The total earnings of a company after deducting all expenses, taxes, and losses.

Cash Ratio

A liquidity metric that measures a company’s ability to cover its short-term liabilities with its cash and cash equivalents.

Current Ratio

A measure of a business's capability to settle short-term debts, calculated as the ratio of current assets to current liabilities.

Cash Equivalents

Liquid assets that can be quickly turned into a specific amount of cash and have initial maturity times of no more than three months.