A Wire Rod Rolls with a Speed of 20 M/s

question 1

Multiple Choice

A wire rod rolls with a speed of 20 m/s on two metallic rails, 1.0 m apart, that form a closed loop. If the magnetic field is 1.5 T into the page, the power dissipated in the resistor R and the current direction are, respectively,

• A) 33 mW, clockwise.
• B) 33 mW, counterclockwise.
• C) 76 mW, counterclockwise.
• D) 76 mW, clockwise.
• E) 50 mW, clockwise.

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Definitions:

Market Price

The existing cost at which an asset or service is being offered for buying or selling in the market.

American Put Option

An option contract giving the holder the right to sell an asset at a specified price at any time before the expiration date.

Expiration Date

The specific date on which an options or futures contract becomes void and the holder must settle their position by either selling or exercising the contract.

Indefinite Future

A period without a specified end time, often used in planning or forecasting where the exact timeline is unknown.