In the Figure, a Copper Bar Is in Contact with a Pair

question 17

Multiple Choice

In the figure, a copper bar is in contact with a pair of parallel metal rails and is in motion with velocity ν. A uniform magnetic field is present pointing downward, as shown. The bar, the rails, and the resistor R are all in the same plane. The induced current through the resistor R is

• A) from a to b.
• B) from b to a.
• C) There is no induced current through the resistor.

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Definitions:

Cognitive Delays

Developmental delays in which a child has difficulty achieving cognitive milestones appropriate for their age.

Problem-Solving Strategies

Methods or approaches used to overcome obstacles, resolve conflicts, or find solutions to complex issues.

Language Development

The process by which human beings acquire the capacity to perceive, comprehend, and produce language during early childhood and beyond.

Communication Development

The process of acquiring the ability to understand and express language verbally and non-verbally.