In an x-ray tube, which electrode is heated to release electrons?

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Multiple Choice

In an x-ray tube, which electrode is heated to release electrons?

Explanation:
Heat applied to the filament inside the cathode causes thermionic emission, releasing electrons. The cathode is the electrode that is heated to liberate these electrons, which are then pulled toward the positively charged anode to produce X-rays when they strike the target. The anode serves as the target for the electrons, not the heater, and the other terms—central ray and control panel—are not components that release electrons.

Heat applied to the filament inside the cathode causes thermionic emission, releasing electrons. The cathode is the electrode that is heated to liberate these electrons, which are then pulled toward the positively charged anode to produce X-rays when they strike the target. The anode serves as the target for the electrons, not the heater, and the other terms—central ray and control panel—are not components that release electrons.

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