Which thermometer type uses heat sensors to measure temperature?a)Merc...
Digital thermometers use electronic sensors to measure and display the temperature digitally.
Which thermometer type uses heat sensors to measure temperature?a)Merc...
Understanding Thermometer Types
Thermometers come in various types, each utilizing different methods to measure temperature. Among these, the digital thermometer stands out for its use of electronic sensors.
What is a Digital Thermometer?
- A digital thermometer is a device that measures temperature using electronic sensors.
- It displays the temperature reading on a digital screen, making it easy to read.
How Does it Work?
- Inside a digital thermometer, there are sensors made of materials that change resistance with temperature.
- The electronic circuit processes this change in resistance and converts it into a temperature reading, which is then shown on the display.
Comparison with Other Thermometers
- Mercury Thermometer: Uses liquid mercury, which expands or contracts with temperature changes. It requires manual reading from a scale.
- Alcohol Thermometer: Similar to mercury thermometers but uses colored alcohol. It also relies on manual reading and can be less toxic.
- Bimetallic Thermometer: Contains two different metals that expand at different rates. It uses a dial to show the temperature but does not use electronic sensors.
Why is Digital Thermometer Preferred?
- Digital thermometers provide quick and accurate readings.
- They are safer, as they do not contain mercury or alcohol.
- The digital display is easier to read, making them user-friendly.
In conclusion, option 'B', the digital thermometer, is the correct answer as it uniquely employs electronic sensors to measure temperature, distinguishing it from traditional types.
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