A Pair of Parallel Conducting Plates Have Potentials of −17

question 51

Multiple Choice

A pair of parallel conducting plates have potentials of −17 V and 55 V, respectively. An electron is ejected from the plate at potential −17 V and travels to the plate at 55 V. What is the change in the electron's potential energy as it makes this journey?

• A) 6.1 × 10⁻¹⁸J
• B) −6.1 × 10⁻¹⁸J
• C) 1.2 × 10⁻¹⁷J
• D) −1.2 × 10⁻¹⁷J

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