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amid [387]
2 years ago
14

Why do conductors transfer heat faster than insulators?

Physics
2 answers:
ryzh [129]2 years ago
7 0
Because they have freely moving electrons that can transfer thermal energy quickly and easily
Nesterboy [21]2 years ago
3 0

Answer:

Conduction is usually faster in certain solids and liquids than in gases. Materials that are good conductors of thermal energy are called thermal conductors. Metals are especially good thermal conductors because they have freely moving electrons that can transfer thermal energy quickly and easily.

Heat transfer by convection happens through the air, and there are millions of minuscule air spaces between the fibers. Heat transfer by radiation is also slow since one fiber must radiate its heat to another.

When we give heat then kinetic energy is increase and this heat is transferred from hot metal to cold metal through this free electrons. As in insulator the free electrons are negligible so that the heat is not transferred from hot junction to cold junction due to absence of this free electrons.

Explanation:

maek me as brainliest

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When an atom that has no charge looses two electrons it becomes a
alex41 [277]

Answer: it becomes a positive ion

Explanation:

So, when an atom loses 2 electrons there will be no change in the number of neutrons. Therefore, an isotope will not form. Thus, it is concluded that when an atom with no charge loses two electrons, it becomes a positive ion.

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3 years ago
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Sometimes scientists make a mistake, or ___, and need to do the experiment again?
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Sometimes scientists make a mistake or Miscalculate and need to do the experiment again. 
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Change in speed over a given period of time is
madam [21]

Explanation:

Acceleration is the change in speed over a given time period

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Brad has experienced a relatively severe left hemisphere stroke. As a result, he is unable to move his right arm and has a great
MArishka [77]

Answer:

Frontal

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Brad has experienced a relatively severe left hemisphere stroke. As a result, he is unable to move his right arm and has a great deal of difficulty with planning and attention. The stroke most likely caused damage to the _Frontal_______ lobes.

Frontal lobes are our emotional control center. Frontal lobes are responsible for our memory, relationships, language, irritation, judgement and social and sexual behavior.

4 0
3 years ago
How does the capacitance of capacitor vary with the dielectric resistant of a medium
Snowcat [4.5K]

Answer:

Every dielectric medium will have a dielectric (strength) constant.

For space / vacuum it is 1. For rest of the dielectric media, it is greater than 1. The capacitance of a capacitor filled with a material of dielectric constant k, is given by the relation:

C = k . C0 (where C0 is the capacitance with space / vacuum as the dielectric material in that capacitor which means no dielectric between the plates)

So, it clearly states that the higher the dielectric constant, the more the capacitance i.e. it is directly proportional to the dielectric strength.

Dielectric constant varies with temperature.

Explanation:

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