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Questions and Answers
Why is mercury often used in medical thermometers?
Why is mercury often used in medical thermometers?
- Mercury has a higher boiling point than alcohol.
- Mercury is safer for human health compared to alcohol.
- Mercury is cheaper to produce than alcohol.
- Mercury expands at a more consistent rate than alcohol. (correct)
What is the primary advantage of having a thin capillary in a fever thermometer?
What is the primary advantage of having a thin capillary in a fever thermometer?
- To decrease the response time of the thermometer.
- To increase the thermometer's durability.
- To make the thermometer more cost-effective.
- To allow for more precise readings of temperature changes. (correct)
What gives thermistors their high sensitivity as temperature sensors?
What gives thermistors their high sensitivity as temperature sensors?
- Their chemical composition.
- Their electrical resistance changes significantly with temperature. (correct)
- Their ability to resist temperature changes.
- Their large physical size.
How does the small size of thermistors benefit their usage in monitoring blood temperature?
How does the small size of thermistors benefit their usage in monitoring blood temperature?
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Which physical factor does NOT influence the total heat transferred in the conductive method of heat generation?
Which physical factor does NOT influence the total heat transferred in the conductive method of heat generation?
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What type of energy is utilized in microwave diathermy for therapeutic purposes?
What type of energy is utilized in microwave diathermy for therapeutic purposes?
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