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Q: Why is capillary tube narrow in thermometer?
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What is a thermometer bore?

A bore refers to the extremely fine or narrow tube found in a thermometer. It is called a narrow bore or a capillary.


What is a capillary tube in instrumentation terms?

a thermometer--


What is a narrow tube that is used as a metering device?

capillary tube


What is the signal conditioner of mercury-in-glass thermometer?

The capillary tube of the thermometer ( in case of a mecury thermometer).


What are the constrictions in a thermometer?

The constriction in a thermometer is a narrow region in the capillary tube where the liquid (like mercury or alcohol) is forced to flow through. This helps to amplify the rise or fall in temperature, making it easier to read.


Why does a mercury-in-glass laboratory thermometer have a narrow capillary bore?

To increase the sensitivity of the thermometer, that is, for the thermometer to respond quickly to small changes in temperature.


Does liquid water rinse higher in a narrow tube or a wide tube?

You mean rise not rinse. Higher in a narrow tube due to capillary action.


Is mercury in any devices always in a capillary tube?

A thermometer has a capillary tube but a mercury switch in a heater thermostat has mercury that just rolls back and forth.


Describe the structure of a thermometer?

The thermometer consists of a very fine glass tube having a very small bore and is called capillary tube. At one end of capillary tube a very thin glass bulb is provided. The bulb is filled with mercury( most of the times) or alcohol The other end of capillary tube is sealed. The capillary tube is protected by a thick glass tube called stem. On the stem are made markings. These markings are called graduations or degrees.


How do you increase sensitivity of mercury in glass thermometer?

Sensitivity of a thermometer is the length of increase of the liquid per degree rise in temperature. More sensitive means more noticeable expansion. So if you want to increase the sensitivity, you could have a thinner capillary tube, a larger thermometer bulb etc. :)sailesh


The rise of water in a narrow test tube is called?

The rise around the edges is called the meniscus, like capillary action this is caused by the adhesion of the liquid molecules to the walls of the container. In a large bore tube like a test tube or graduated cylinder this pulls up the edge and creates a concave meniscus, in a smaller bore tube this actually pulls the liquid toward the top of the tube.


Where is the capillary tube and bulb in a thermometer?

The capillary tube is the hollow opening inside the thermometer that the liquid rises or lowers in so that you can read the temperature. The bulb is the bottom portion that holds the liquid and the part you use for contact to get a temperature reading. Calvin B.