A Conducting Bar Moves Along Frictionless Conducting Rails Connected to a 4.00-Ω

question 30

Essay

A conducting bar moves along frictionless conducting rails connected to a 4.00-Ω resistor as shown in the figure. The length of the bar is 1.60 m and a uniform magnetic field of 2.20 T is applied perpendicular to the paper pointing outward, as shown.
(a) What is the applied force required to move the bar to the right with a constant speed of 6.00 m/s?
(b) At what rate is energy dissipated in the 4.00 Ω resistor?

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Definitions:

Carol Gilligan

An American feminist, ethicist, and psychologist best known for her work on ethical community and the ethics of care, challenging traditional models of moral development.

Moral Development

The process through which individuals evolve in their understanding and application of moral concepts, behaviors, and reasoning over time.

Aristotle

An ancient Greek philosopher and polymath, a student of Plato and teacher of Alexander the Great, whose writings covered many subjects, including physics, biology, zoology, metaphysics, logic, ethics, aesthetics, poetry, theater, music, rhetoric, linguistics, politics, and government.

Hedonism

An ethical theory that argues pleasure or happiness is the highest good and proper aim of human life.