As Shown in the Figure, a Metal Bar Is in Contact

question 60

Multiple Choice

As shown in the figure, a metal bar is in contact with a pair of metal parallel rails. A steady uniform magnetic field B, perpendicular to the plane of the rails and pointing outward from the page, is present. The bar is in downward motion with velocity of magnitude ν. The direction of the induced current through the resistor R is

• A) from a to b.
• B) from b to a.
• C) No current is induced.

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Definitions:

Double Covalent Bonds

Chemical bonds where two pairs of electrons are shared between atoms, resulting in a stronger and more stable bond than a single covalent bond.

Carbohydrates

Organic compounds consisting of carbon, hydrogen, and oxygen, typically found in sugars, starches, and cellulose, serving as a major energy source in the diet of animals.

Starches

Complex carbohydrates that are composed of many glucose units joined together, found in foods like potatoes, rice, and wheat.

Energy Nutrients

Nutrients such as carbohydrates, fats, and proteins that provide energy for the body to perform its functions.