A Beam of Electrons Is Accelerated Through a Potential Difference

question 5

Multiple Choice

A beam of electrons is accelerated through a potential difference of 10 kV before entering a region having uniform electric and magnetic fields that are perpendicular to each other and perpendicular to the direction in which the electron is moving.If the magnetic field in this region has a value of 0.010 T,what magnitude of the electric field is required if the particles are to be undeflected as they pass through the region?

• A) 2.3 × 10³ V/m
• B) 7.9 × 10³ V/m
• C) 5.9 × 10⁵ V/m
• D) 6.0 × 10⁵ V/m
• E) 7.2 × 10⁶ V/m

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Definitions:

Prime Cost

The combined costs of direct materials and direct labor that are directly involved in the manufacturing of a product.

Direct Labor

The wages and salaries of employees who are directly involved in the production of goods or services.

Manufacturing Overhead

All manufacturing costs that are not directly associated with the production of goods, such as utilities, rent, and salaries for managers.

Direct Materials

The raw materials that can be physically and directly associated with manufacturing the end product.