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Why does the conductivity of a semiconductor increase with the rise of temperature?
The increase in temperature provides more thermal energy to the electrons in a semiconductor, allowing them to overcome the energy barriers and move more freely, increasing the conductivity. This is due to more electrons being excited to the conduction band and contributing to the electrical conduction of the material.
What else can I help you with?
Is it possible to heat the body without rise in temperature?
No, the process of heating the body results in a rise in temperature. When heat is applied to the body, it absorbs the energy, leading to an increase in temperature.
What is the increase in the velocity of sound in the air for 1 degree Celsius rise in temperature?
The increase in the velocity of sound in air for a 1-degree Celsius rise in temperature is approximately 0.6 m/s. This increase occurs because the speed of sound in air is directly proportional to the square root of the temperature.
What happens to the thermometer when the temperature goes up?
When the temperature goes up, the mercury or alcohol inside the thermometer expands, causing the level to rise. This increase in volume is directly correlated with the increase in temperature, allowing the thermometer to indicate the higher temperature.
What type of radiation causes temperature to rise?
Infrared radiation is responsible for causing temperatures to rise. When infrared radiation strikes an object, it is absorbed and converted into heat, leading to an increase in the object's temperature.
Does viscosity increase as temperature increases?
Usually the increase in temperature decreases the viscosity of a liquid due to weakness of intermolecular attractions but some mixtures show an increase in viscosity with the rise of temperature as egg (proteins).
What is the importance of heat sink in a circuit?
Most of the electronic active components are made of semiconductors. Rise or fall in temperature will change the conductivity of a semiconductor. So in order to prevent it heat sinks are used in circuits.
What is the effect of temperature on hall coefficient of a lightly doped semiconductor?
hall coefficient of a lightly doped semiconductor will decrease with increase in temp as hall coefficient is inversely proportional to number density of charge carriers.
What can cause a solid to change into a liquid?
A rise in temperature
Why pure semiconductor just behave like an insulator?
At absolute zero (0K), an intrinsic semiconductor will act like a perfect insulator. At this temperature, the electrons in the valence band will remain there. The heat energy required to excite the electrons from the valence band to the conduction band is insufficient at 0K. When the temperature increases, some of the electrons from the valence band got excited and moves to the conduction band. This will give rise to the conductivity of the semiconductor. i.e in 0 k(0 kelvin) the pure semi conductor the electrons in the valance band don't do any thing.They are lazy for conductivity.But when increasing the temperature increase the energy of electrons and they try to move.At the end electrons win and they can to move.So it happened a conductivity.
When solid changes to liquid rise in temperature or drop in temperature?
Melting need an increase of the temperature.
When molecules move fast what seems to rise?
The temperature increase.
Viscosity increase as temperature increase?
Usually the increase in temperature decreases the viscosity of a liquid due to weakness of intermolecular attractions but some mixtures show an increase in viscosity with the rise of temperature as egg (proteins).
Is it possible to heat the body without rise in temperature?
No, the process of heating the body results in a rise in temperature. When heat is applied to the body, it absorbs the energy, leading to an increase in temperature.
What 2 things can make the pressure of gas rise?
1) Increase in heat 2)Decrease in volume
What is the increase in the velocity of sound in the air for 1 degree Celsius rise in temperature?
The increase in the velocity of sound in air for a 1-degree Celsius rise in temperature is approximately 0.6 m/s. This increase occurs because the speed of sound in air is directly proportional to the square root of the temperature.
What is meant by initial temperature rise of IC?
A: As power is turn on the temperature of the IC is at ambient temperature or the initial temperature then becomes the increase in temperature due to heating.
Can allergies cause a rise in body temperature?
Allergies can sometimes cause a slight increase in body temperature, but it is usually not significant.
