0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
How a capacitor stores energy?
The energy stored in a capacitor is almost entirely in the electric field produced between the plates. It takes energy from a battery or some other power source to move electrons to one of the plates and away from the other. This makes one plate positively charged and the other negatively charged. Electric field is produced in proportion to the charge per unit area on a plate, and this electric field is said to originate on positive charges and terminate on negative charges. Energy stored in electric fields is proportional to the square of the electric field strength and the volume of the field. The energy is transferred from the power source to the electric field through the rearrangement of electrical charges.
Why is potentials energy sometimes called stored energy?
Because it is. Gravitational potential energy is energy stored in the gravitational field, electrical potential energy is energy stored in the electric field, magnetic potential energy is stored in the magnetic field, etc.
Energy is a current carrying coil is stored in the form of?
electric field
Is heat an example of electromagnetic energy?
The answer is No, heat is a measure of the kinetic energy of the atoms. In a gas, the only form that the energy is stored in is kinetic energy. Note however that in a solid, the atoms are vibrating, this energy moves back and forth between being kinetic energy and potential energy. When it is in the form of potential energy the energy is being stored in an electric field. So just as much energy is being stored in an electromagnetic field as in the form of kinetic energy. So the strict answer is , kind of, sometimes.
Is potential energy a stored energy?
Yes, that's one way to think about potential energy - energy that is stored (in a force field).
What happen to the energy stored in the capacitor while the capacitor is discharging?
It flows out of the capacitor into the external circuit
What is the reason behind the lag of current in inductor lead in capacitor?
The physics of the energy storage. In an inductor, the current must fight against the stored energy in the magnetic field which tries to keep the current unchanged. Any change in the current lags the voltage since the stored energy impacts the adjustment. Similarly, the "displacement" current in a capacitor leads the electric field buildup in a capacitor, causing the voltage to lag the current until the stored energy building up in the electric field stabilizes. Any change in the voltage is first preceded by a change in the displacement current.
How does a capacitor store energy?
The energy stored in a capacitor is almost entirely in the electric field produced between the plates. It takes energy from a battery or some other power source to move electrons to one of the plates and away from the other. This makes one plate positively charged and the other negatively charged. Electric field is produced in proportion to the charge per unit area on a plate, and this electric field is said to originate on positive charges and terminate on negative charges. Energy stored in electric fields is proportional to the square of the electric field strength and the volume of the field. The energy is transferred from the power source to the electric field through the rearrangement of electrical charges.
What is a capacitance?
capacitanceis the ability of a body to store charge in anelectric field. Capacitance is also a measure of the amount of electric potential energy stored (or separated) for a given electric potential.AnswerA capacitor is a device that will store electrical energy. This energy is stored in its electric field. This is achieved by separating the charge on its plates -contrary to popular belief, it does not store that charge, as the net charge remains the same after charging as it was before charging.
What is held by power supply capacitor?
Capacitor store electrostatic energy in form of electric field.
How a capacitor stores energy?
The energy stored in a capacitor is almost entirely in the electric field produced between the plates. It takes energy from a battery or some other power source to move electrons to one of the plates and away from the other. This makes one plate positively charged and the other negatively charged. Electric field is produced in proportion to the charge per unit area on a plate, and this electric field is said to originate on positive charges and terminate on negative charges. Energy stored in electric fields is proportional to the square of the electric field strength and the volume of the field. The energy is transferred from the power source to the electric field through the rearrangement of electrical charges.
Why is potentials energy sometimes called stored energy?
Because it is. Gravitational potential energy is energy stored in the gravitational field, electrical potential energy is energy stored in the electric field, magnetic potential energy is stored in the magnetic field, etc.
What is the function of capacitance?
The main purpose of a capacitor is to electrostatically store energy in an electric field. It is originally known as condenser.
A capacitor is a device which stores energy by?
Magic. Look up capacitors on wikipedia!!A capacitor stores electrical charges in its plates.Both wrong. A capacitor stores energy as an electric field developed in the dielectric between its plates. A good dielectric with high permittivity (once called dielectric constant) concentrates this field, allowing more energy to be stored in a capacitor having the same plate area and separation but a dielectric of lower permittivity.
How reactive power is utilised and returned to the circuit?
The energy is stored in an inductor in the form of magnetic field and in capacitor as electric charges. In both cases, as the current increase,according to its sine wave form, the flux or electric charges build up i.e energy being stored. As the current start dropping the field or electric charge start dropping too thus energy is being fed back into the circuit.
For a coil with electric current where is the energy associated with the magnetic field of the electric current stored?
The Magnetic field itself can do no work and is a byproduct of the electric current. The energy is stored in the current or provided by whatever drives the current.
For a permanent magnet where is the energy associated to the magnetic field of the magnet stored?
For both the magnetic and electric (static) fields, energy is considered to be stored in the field.
