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

question 53

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:

Language Acquisition

The process by which humans acquire the ability to perceive, produce, and use words to understand and communicate.

Collective Monologues

A form of communication often seen in young children where dialogue occurs but speakers do not interactively respond to each other's statements, instead talking about their own separate experiences.

True Dialogue

Authentic and meaningful conversation between individuals where ideas and thoughts are exchanged openly and respectfully.

Syntactic Bootstrapping

An approach by which young children leverage syntax or the grammatical structure of sentences to infer the meanings of new words.