A Pair of Charged Conducting Plates Produces a Uniform Field

question 21

Multiple Choice

A pair of charged conducting plates produces a uniform field of 12,000 N/C, directed to the right, between the plates. The separation of the plates is 40 mm. An electron is projected from plate A, directly toward plate B, with an initial speed of v₀ = 2.0 × 10⁷ m/s. What is the speed of the electron as it strikes plate B? (e = 1.6 × 10^-19 C, m_electron = 9.11 × 10^-31 kg)

• A) 1.2 × 10⁷ m/s
• B) 1.5 × 10⁷ m/s
• C) 1.8 × 10⁷ m/s
• D) 2.1 × 10⁷ m/s
• E) 2.4 × 10⁷ m/s

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Definitions:

Small Groups

Collections of individuals who interact with each other, usually face-to-face, in a way that each person influences and is influenced by each other.

Likert Scale

A technique for measuring attitudes that asks a respondent to indicate the extent to which he or she agrees with each of a series of statements about an object.

Reliability

The degree to which a measuring instrument produces the same results each time it is employed under a set of specified conditions.

Different Participants

Refers to the diverse members or individuals who take part in a study, survey, or any given activity or process.