The Figure Shows a Velocity Selector That Can Be Used $+ q$

question 36

Multiple Choice

The figure shows a velocity selector that can be used to measure the speed of a charged particle. A beam of particles of charge $+ q$ is directed along the axis of the instrument. A parallel plate capacitor sets up an electric field $E$ which is oriented perpendicular to a uniform magnetic field $B$ . If the plates are separated by $3.0 \mathrm {~mm}$ and the value of the magnetic field is $0.30 \mathrm {~T}$ , what potential difference between the plates will allow particles of speed $v = 5.0 \times 10 ^ { 5 } \mathrm {~m} / \mathrm { s }$ to pass straight through without deflection?

• A) \(2800 \mathrm {~V}\)
• B) \(70 \mathrm {~V}\)
• C) \(450 \mathrm {~V}\)
• D) \(1400 \mathrm {~V}\)
• E) \(140 \mathrm {~V}\)

Recognize the effective advertisement type for various stages of the product life cycle.

Identify the goals and strategies behind institutional advertisements.

Distinguish between product and institutional advertisements.

Understand the use and objectives of comparative advertising.

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Definitions:

External Environment

All external factors and conditions, including physical, social, and economic, that affect an individual or organization.

Speech

The expression of thoughts and feelings by articulated sounds or words, a primary means of human communication.

Perception

The process by which individuals organize and interpret their sensory impressions in order to give meaning to their environment.

Garden Path Sentences

Sentences that begin in such a way that a reader's most likely interpretation will be incorrect and will need to be revised upon reaching the end of the sentence.