A Rod (Length = 10 Cm) Moves on Two Horizontal

question 55

Multiple Choice

A rod (length = 10 cm) moves on two horizontal frictionless conducting rails, as shown. The magnetic field in the region is directed perpendicularly to the plane of the rails and is uniform and constant. If a constant force of 0.60 N moves the bar at a constant velocity of 2.0 m/s, what is the current through the 12-Ω load resistor?

• A)0.32 A
• B)0.34 A
• C)0.37 A
• D)0.39 A
• E)0.43 A

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Definitions:

Adolescent Growth Spurt

A rapid increase in height and weight during puberty, resulting from accelerated bone and muscle growth.

Rapid Rate

A fast pace or speed at which something happens or progresses.

Double-Deficit Hypothesis

The theory of dyslexia that suggests that dyslexic children have biological deficits in two areas: phonological processing (interpreting sounds) and naming speed (for example, identifying letters, such as b versus d, or w versus m).

Phonological Processing

involves the use of sounds of language, including the ability to segment words into smaller units, blend sounds into words, and manipulate sounds within words, crucial for reading and language development.