Photoelectric Effects and deBroglie Equation: Practice Problem & Solution
41. The current conduction in a discharge tube is due to: (1999)
Solution Explained:
To solve this problem, we apply the core principles of Photoelectric Effects and deBroglie Equation. Understanding the underlying formula is key to arriving at the correct answer below:
In a gas discharge tube, the applied high voltage ionizes the gas atoms. This creates free electrons and positive ions. Both of these charged particles migrate towards opposite electrodes under the electric field, contributing to the current conduction.
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