A Conducting Bar Rests on Two Parallel Horizontal Rails 50

question 89

Multiple Choice

A conducting bar rests on two parallel horizontal rails 50 cm apart forming a square area. The resistance of the bar and the rails is assumed to be constant and equal to 0.05 Ω. A uniform magnetic field 0.5 T is perpendicular to the plane of the rails. The value of the field is uniformly reduced to zero in a time of 0.1 s. What is the maximum value of the force acting on the bar during that time?

• A)6.25 N
• B)4.12 N
• C)2.05 N
• D)5.75 N
• E)1.00 N

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Definitions:

Maslow's Hierarchy

A theory in psychology proposed by Abraham Maslow that suggests human needs are arranged in a hierarchy from physiological needs to self-actualization.

Physiological Needs

Basic physical requirements essential for human survival, such as food, water, and shelter, as described in Maslow's hierarchy of needs.

Self-Actualization

The accomplishment of realizing one's full capabilities and potential, seen as an intrinsic aspiration or necessity among all humans.

Appraisal Theory

A theory in psychology that suggests emotions are derived from an individual's evaluation (appraisal) of a situation in terms of how it impacts their well-being.