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What are short fast transfers of electrical voltage current or energy?
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∙ 12y ago
Power Spikes
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∙ 12y ago
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What is a simple definition of electrical energy?
The energy in an electrical current, or stored temporarily in capacitors or inductances.
What is electrical energy transmission?
I would guess it refers to transmitting energy using an electrical current.
Why do resistor voltage decrease while capacitor discharges?
The reason why resistor voltage decreases while a capacitor discharges is because the resistor acts like a source of electrical energy. As the capacitor discharges, it draws energy from the resistor, which causes the voltage across the resistor to decrease. This is because the capacitor is acting like a drain, and is taking energy out of the resistor, thus causing the voltage across the resistor to decrease. The resistor and capacitor work together in order to create a discharge circuit. This is done by connecting the capacitor to the resistor, and then to a voltage source. The voltage source supplies the energy to the resistor, and then the resistor transfers this energy to the capacitor. As the capacitor discharges, it takes energy from the resistor, which causes the voltage across the resistor to decrease. In order to understand this process better, it is important to understand the basics of Ohm's Law. Ohm's Law states that the voltage across a resistor is equal to the current through the resistor multiplied by the resistance. As the capacitor discharges, it takes energy from the resistor, which means that the current through the resistor decreases, and therefore the voltage across the resistor will also decrease.
What ways can voltage be produced?
Voltages are produced by converting one form of energy into electrical energy. Mechanical energy can be converted into electrical energy (voltage and current) by moving a magnet or magnetic coil in proximity with a stationary coil, connected to an electrical circuit. A voltage can also be produced with a chemical reaction. Batteries and fuel cells convert energy in specially designed cells, where a chemical reaction causes a voltage to exist across two electrodes implanted at two different parts of the cell. A voltage can be produced by the interaction of light on a photocell. The photons of light interacting with atoms in the photocell, cause an electron to be ejected. The special design of the photocell causes this to occur in such a manner as to produce voltage across the cell. A voltage can be produced by subjecting a thermocouple to differential temperature. A thermocouple is a relatively simple device composed of two dissimilar metals, joined together at what is referred to as a thermal junction. If one side of the junction is warm, relative to the other side of the junction, a voltage exists across the junction.
Why is electrical power transmitted in high voltage and not high current?
For any given load, the higher the supply voltage, the lower the resulting load current. A lower load current results in an acceptable voltage drop along the line, that conductors with lower cross-sectional areas can be utilised, and line losses are minimised. So high voltages are essential for energy (not 'power') transmission.
What measure of electrical energy transfers by electrons in a circuit?
Voltage
What do solar cells convert light into?
Low voltage DC currentit converts it to electrical energy. :}Comment - low voltage DC current is electrical energy
How does electrical power go from the voltage regulator to the alternator?
an electrical alternator is an electromechinical device that converts mechanical energy to alternating current electrical energy
How is battery voltage related to electrical energy?
Voltage is the amount of energy in each coulomb of charge that passes through the battery. This means that the energy is the voltage times the time-integral of the current. For a constant current: E = V I t Where E = Energy in Joules V = Voltage in Volts I = Current in Amps t = time in seconds
What do you multiply to get electrical energy?
Electrical energy = (power) multiplied by (time) or (voltage across a component or circuit) times (current through it) times (time)
Does a transformer provide electrical energy that is produced chemically?
No. A transformer transforms electrical energy, from one voltage to another voltage.No. A transformer transforms electrical energy, from one voltage to another voltage.No. A transformer transforms electrical energy, from one voltage to another voltage.No. A transformer transforms electrical energy, from one voltage to another voltage.
What energy transfers take place in an electrical cell?
Chemical energy is changed into electrical energy
What item transfers electrical energy to mechanical energy?
An electronic motor transfers electrical energy to kinetic energy (movement energy). These use electromagnets, powered by your power source (eg. Batteries).
What generates electrical energy from chemical energy?
A battery stores chemical energy creating a voltage or potential difference that is the potential to do work.When a battery is connected to an electrical device, current flow and is so the conversion of chemical energy into electrical energy.
What is the maximum voltage and current optical fiber can take?
Optical fibers transmit light, not electrical energy.
What is an active electrical network?
The electrical network which has its own energy sources like current or voltage sources within the circuit is called as an active electrical network
Does a current always flow between two objects connected by a path?
No - that would violate Conservation of Energy, since an electrical current has energy! For a current to flow, there must also be a voltage difference.
