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What electrons moving through a resistor transfer some of their energy to the resistor in the form of?
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Is voltage established through a resistor or across a resistor?
Current = charge (electrons) flowing through a resistor.Voltage = energy lost across a resistor.Power = energy lost across a resistor per second.So yes you are correct. Current is established through a component, while voltage and power are established across a component.Answer'Voltage' is a synonym for 'potential difference'. As the name implies, voltage describes the difference in potential between (or 'across') two different points. So voltage is applied ACROSS a resistor.Further to the original answer. voltage is NOT equivalent to 'the energy lost across a resistor', and power is NOT 'established across a resistor' (power is simply a 'rate', nothing more)!
Why schottky is called hot carrier diode?
Because the energy of electrons transfer from semiconductor to metal side have more energy than the fermi energy of electrons in metal side. That's why these are called hot carrier diodes
What effect does energy have on a resistor?
One way to look at the purpose of a resistor is as a device built to dissipateelectrical energy. Some (but usually not all) of the energy of the current througha circuit is always dissipated when it flows through a resistor. The energy lostleaves the resistor in the form of heat.The number of joules of electrical energy lost and heat dissipated by the resistor is(amperes of current through the resistor)2 x (ohms of resistance) x (seconds of time it continues)If you work with resistors often, or see several of them inside an old radio, you noticethat there are physically big ones and physically small ones. The size of the resistorisn't related to the number of ohms of resistance it has. The physical size is relatedto how fast it can dissipate energy (heat) without melting or burning up. A biggerresistor has more air around it, so it can get rid of heat faster.
How to calculate the heat produced in a resistor?
Resistors dissipate heat energy with power P=I2R. Since power is defined as energy gained or lost per unit time, we can solve for the energy lost using E=Pt, where E is energy (joules), P is power, and t is time (seconds).Finally, substituting the definition of power into the equation you get:E=I2RtAnswerWith difficulty. The original answer, unfortunately, tells us the work done on the resistor and not the heat transfer from the resistor, which is what the questioner is asking.The work done on the resistor is the product of the square of the current and the value of its resistance. This will increase the internal energy of the resistor and increase its temperature above that of its surroundings, and heat, by definition, is the energy transferred from the higher temperature resistor to its cooler surroundings.So there are simply too many unknown variables to take into account: the mass of the resistor, the specific heat capacity of the material from which it's made, the temperature difference between the resistor and its surroundings...
Electrical resistance is caused by what?
Resistors and semi-conductors. As electrons travel through these less conductive substances they collide with more atoms, typically converting some of their energy to heat and light. Consider a common light bulb - the tungsten filament is a simple resistor - the tungsten atoms partially block the electrons traveling through, converting their energy to light and some heat.
What causes a resistor to heat up?
The current through a resistor or for that matter any conducting medium is caused by flow of electrons. These electrons do not flow like a stream through the resistor or conductor but undergo repeated collisions with the vibrating atoms of the resistor, transferring their kinetic energy to them. This in turn increases the vibrational energy of the atoms and manifest itself as heat in the resistor/ conductor. In turn this results in reduced drift velocity of the electrons resulting in reducing the current , thus acting as a Resistor.
Can you transfer energy through bluetooth?
No. You can not transfer energy through bluetooth.
Why does the transfer of electrons from glucose to oxygen during aerobic respiration takes place in a stepwise fashion through a number of intermediates rather than by direct transfer?
the energy of the electrons can be used to make ATP
What is the equivalent transfer of electrons from one compound to another?
Equivalent to ENERGY transfer
How do electrons transfer energy?
They don't. In the case of d.c., electrons move extremely slowly through a conductor, less than a millimetre per hour; in the case of a.c., they simply vibrate backwards and forwards. So electrons don't transfer energy from the supply to the load. Energy doesn't even pass through wires -it is transferred by a combination of the magnetic and electric fields, around the wire.
What type of energy transfer occurs between electrons?
This is known as electron-transfer (ET).
What accouts for most of the energy exchange in cells?
The transfer of electrons
Where do mechanical transfer energy?
they transfer energy through sound water and air.
How does heat transfer energy?
draughts transfer heat energy through convection
Where do waves transfer energy?
they transfer energy through sound water and air.
What are conduction electrons?
The free electrons that orbits in the last orbitals of conductive atoms like metals that can transfer from one atom to the another is conductive electrons.
Do electrons lose energy or speed when they cross over a resistor?
You won't like the answer....but electrons are charge carriers and neither their speed nor their energy has much to do with what happens within an electric circuit.
