Two Large Conducting Parallel Plates a and B Are Separated

question 22

Multiple Choice

Two large conducting parallel plates A and B are separated by 2.4 m. A uniform field of 1500 V/m, in the positive x-direction, is produced by charges on the plates. The center plane at x = 0.00 m is an equipotential surface on which V = 0. An electron is projected from x = 0.00 m, with an initial velocity of 1.0 × 10⁷ m/s perpendicular to the plates in the positive x-direction, as shown in the figure. What is the kinetic energy of the electron as it reaches plate A? (e = 1.60 × 10^-19 C, m_el = 9.11 x 10^-31 kg)

• A) +2.4 × 10^-16 J
• B) +3.3 × 10^-16 J
• C) -2.4 × 10^-16 J
• D) -2.9 × 10^-16 J
• E) -3.3 × 10^-16 J

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Definitions:

Effective Rate

The interest rate for a loan or financial product recalculated from its nominal rate to represent an annual compound interest rate, paid in arrears.

Nominal Interest

The stated interest rate of a bond or loan, not accounting for inflation or the compounding of interest.

Compounded Quarterly

Interest calculation where the interest earned over a quarter is added to the principal for the calculation of future interest, effectively compounding every three months.

Effective Rate

The actual interest rate of an investment or loan, taking into account the compounding of interest.