A Beam of Electrons Is Undeflected When It Passes Simultaneously

question 39

Multiple Choice

A beam of electrons is undeflected when it passes simultaneously through an electric field of 10 N/C perpendicular to its path and a magnetic field of 2 *10^-4 T perpendicular both to its path and to the electric field. The speed of the electrons is approximately

• A) 2 * 10^-4 m/s
• B) 1 * 10⁴ m/s
• C) 5 * 10^-4 m/s
• D) 2* 10⁴ m/s
• E) 5*10⁴ m/s

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Definitions:

Excess Supply

A situation in which the quantity of a good or service provided exceeds the quantity demanded at a given price.

Market Equilibrium

A state where the supply of a product matches its demand, resulting in stable prices.

Quantity Demanded

The aggregate quantity of a product or service that buyers are prepared to buy at a given price.

Excess Supply

A situation where the quantity of a product offered for sale by producers exceeds the quantity that consumers are willing to buy at a given price.