Stopping Voltage
Formula: eU_c = (1)/(2)m_ev_m² Applicable Conditions: Measuring the maximum initial kinetic energy of photoelectrons.
Syllabus path: Modern Physics › Photoelectric Effect
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CSCA Physics Formula Reference
Formula and explanation
Formula: eU_c = (1)/(2)m_ev_m² Applicable Conditions: Measuring the maximum initial kinetic energy of photoelectrons. Explanation: The minimum reverse voltage U_c required to reduce the photocurrent to zero. The product of U_c and the electron charge e equals the maximum initial kinetic energy of the photoelectron.
Related tutorial and examples
Photoelectric Effect
Modern Physics: Photoelectric Effect 1. Phenomenon & Definition The Photoelectric Effect is the emission of electrons when light shines on a material. The emitted electrons are called photoelectrons, and the resulting current is the photocurrent. Classical Dilemma vs. Quantum Exp…
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