To Increase the Current Density in a Wire of Length

question 18

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:

Price Ceiling

A legally imposed maximum price on goods or services, intended to prevent prices from rising above a certain level.

Equilibrium Price

The market price where the quantity of goods supplied is equal to the quantity of goods demanded.

Price Ceiling

A government-imposed limit on how high a price is charged for a product, commodity, or service.

Equilibrium Price

The price at which the quantity of a good demanded by consumers equals the quantity supplied by producers, resulting in a stable market condition.