Answer :
Final answer:
The oven thermal bulb is a liquid-filled capillary tube, which responds to temperature changes by expanding and triggering a temperature-regulating mechanism.
Explanation:
No, the oven thermal bulb is not a gas-filled capillary tube. The correct answer is B) No, it is a liquid-filled capillary tube. In common types of oven thermometers or temperature regulators, a thermal bulb contains a liquid that expands in response to temperature changes. The expansion of the liquid due to heating causes it to move through the capillary tube, which can trigger a mechanical or electrical response to maintain the desired oven temperature. It's different from the gas-filled tubes used in incandescent light bulbs or gas discharge tubes.
