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What else can I help you with?
What is the effect of temperature on transistor?
conductivity of semiconductors increases with increase in temperature as breakdown of covalent bonds take place in the semiconductor due to increase in temp but more & more increase in the temp may result in the breakdown or damage of the semiconductor which results in the decrease in conductivity of semiconductor
Why semiconductor has negative temperature coefficient of resistance?
Actually, the BJT is a positive temperature coefficient device. As they get warm, hFe increases, causing more current flow. This can lead to thermal runaway. That is why most class A common emitter configurations use an emitter resistor to place limits on the hFe demand, eliminating thermal drift and runaway.
What are the possible remedies against corona because of extra high voltage?
increase the size of conductor ,provide the hallow conductor,increase the critical disruptive voltage bv providing shunt capacitors. these capacitors increases the power capacity of the line.
Why voltage divider bias is called self bias?
This arrangement is called SELF-BIAS. Now, if an increase of temperature causes an increase in collector current, the collector voltage (VC) will fall because of the increase of voltage produced across the load resistor (RL). ... One of the most widely used combination-bias systems is the voltage-divider type
What does this mean Current density of copper bussbars shall not exceed 1000 amperes per square inch I know it's self explanitory but would be the problem if the current density was too high?
Well as you said, it is self explanatory. The current density should not be more than 1000 A per square inch roughly coming to about 1.6 Ampere per square mm. Consider the case when the current density is high i.e. it could be high because of either reduced area with same current OR with more current through same area. Any of this case would lead to increase in the thermal lossess which could eventually lead to thermal runaway without the temperature rise getting stabilized (Stability being defined as temperature rise not exceeding 1 deg C per hour). Rgds, Fency Anthony, ABB Limited, India
Thermal energy added to a substance that is not changing state causes the substances temperature to do what?
The temperature of the substance will increase when thermal energy is added without changing state. This is because the thermal energy is causing the particles within the substance to move faster, resulting in an increase in temperature.
What is the increase of the volume of a substance by the increase of temperature called?
The increase in volume of a substance due to an increase in temperature is called thermal expansion. This occurs because as the temperature of a substance rises, the particles within it gain energy and move more, causing them to spread out and increase in volume.
How does the temperature of 33 grams of graphite change when it absorbs 350 joules of thermal energy?
The temperature of graphite will increase because it absorbs thermal energy. The temperature increase can be calculated using the specific heat capacity of graphite.
How does thermal radiation change as a body emitting it changes temperature?
As a body's temperature increases, its thermal radiation also increases. This is because thermal radiation is directly proportional to the fourth power of temperature according to the Stefan-Boltzmann law. This means that a small increase in temperature results in a significant increase in the amount of thermal radiation emitted.
What is the increase in volume of a material due to a temperature increase is called?
The increase in volume of a material due to a temperature increase is called thermal expansion. This occurs because as the temperature of a material rises, its particles gain kinetic energy, causing them to move more and increase the spacing between them, which leads to an increase in volume.
What is an increase in the size of a substance in response to an increase in the substance's temperature?
An increase in size of a substance in response to an increase in temperature is known as thermal expansion. This occurs because as temperature rises, the particles in the substance gain more energy and move faster, causing the substance to expand. Thermal expansion is a common phenomenon observed in solids, liquids, and gases.
What is the increase in volume that results from an increase in temperature called?
The increase in volume that results from an increase in temperature is called thermal expansion. This occurs because temperature changes cause the particles in a substance to move faster and spread out, leading to an increase in volume.
If the temperature of an object doubles the total amount of its thermal radiation will do what?
If the temperature of an object doubles, the total amount of its thermal radiation will increase by a factor of 16. This is because the rate of thermal radiation is proportional to the fourth power of temperature according to the Stefan-Boltzmann law.
Thermal runaway is not possible in FET because of?
Thermal runaway is not possible in FET because of?
Why does thermal energy depends on temperature?
Thermal energy is the internal energy of a substance due to the movement of its atoms and molecules. As temperature increases, the speed of the particles also increase, leading to more kinetic energy and thus higher thermal energy. Therefore, thermal energy depends on temperature because it is directly related to the average kinetic energy of the particles in a substance.
What happen to temperature if an object gains thermal energy?
If an object gains thermal energy, its temperature will increase. This is because thermal energy is directly related to the average kinetic energy of the particles that make up the object. As the particles move faster and vibrate more vigorously, the temperature of the object will rise.
Why the motion of gas molecules is also called thermal motion?
The motion of gas molecules is called thermal motion because it is directly related to the temperature of the gas. As the temperature increases, the gas molecules move faster and collide more frequently, leading to an increase in thermal energy and the overall temperature of the gas.
