What happens of charges on other side of plates of capacitor

In summary, a capacitor connected to a battery induces positive and negative charges on its plates. These charges go to the battery rather than staying on the plates. The charges are taken into account when calculating the electric field between the plates. Additionally, the construction of a capacitor in a cylindrical form allows for the electrostatic field to be contained within the device and prevents interference with nearby circuits. When a parallel plate capacitor is connected to a closed circuit, the excess electrons on one plate repel an equal amount of electrons from the other plate, resulting in the charge delivered from the battery to the capacitor being considered in calculations.
  • #1
Dexter Neutron
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When a capacitor is connected to battery then positive charge is induced on one plate and a negative charge is induced on another plate.Now what happens to the charges that are induced on opposite sides of each plate i.e. on plate with positive charge a negative charge would be induced on opposite side and same for other plate.
Why these charges are not taken into account for calculating electric field between the plates?
 
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  • #2
Those charges go to the battery. They don't stay on the plates.
 
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  • #3
As each electron is moved by battery emf to one plate, another electron is repelled off the other plate. As already posted.
Dexter Neutron said:
Why these charges are not taken into account for calculating electric field between the plates?

They are. The field results from the charge [and voltage] : V/d = E and Q=CV
 
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  • #4
Dexter Neutron said:
When a capacitor is connected to battery then positive charge is induced on one plate and a negative charge is induced on another plate.Now what happens to the charges that are induced on opposite sides of each plate i.e. on plate with positive charge a negative charge would be induced on opposite side and same for other plate.
Why these charges are not taken into account for calculating electric field between the plates?
Although the capacitor icon may be two parallel plates, in practice these are metal foils and will be multilayered or rolled up into a cylinder so that the reverse side of one plate comes up against the other (but separated by an additional film of dielectric) so it now forms double the capacitance. In the case of a cylindrical form, the spiral edges of the foil are then crimped together so it more resembles a host of concentric cylinders rather than one endlessly-long spiral. This produces the same capacitance while minimizing its inductance and resistance, so making it much closer to the ideal than would otherwise be the case.

In addition, the cylindrical construction means that its electrostatic field can be wholly contained within the device and isn't going to induce interfering signals in nearby circuits.
 
  • #5
when a parallel plate capacitor is connected to a closed ciruit and according to the conventional agreement of current direction, charges move from the negative terminal of the battery to the plate of the capacitor connected to it (as a result there would the excess electrons on this plate) then it repels equal amount of electrons from the plate connected to the positive terminal of the battery(the electrons move to the positive terminal of the battery) so in calculations the charge delivered the battery to the capacitor is considered. hope it helped
 

Related to What happens of charges on other side of plates of capacitor

What happens to the charges on the other side of the plates of a capacitor?

The charges on the other side of the plates of a capacitor will experience an equal and opposite force to the charges on the first side. This force causes the charges to accumulate on the plates, creating an electric field between them.

Do the charges on the other side of the plates of a capacitor change over time?

Yes, the charges on the other side of the plates of a capacitor can change over time. This is due to the movement of charges within the capacitor, which can occur when the capacitor is being charged or discharged.

What determines the amount of charge on the other side of the plates of a capacitor?

The amount of charge on the other side of the plates of a capacitor is determined by the capacitance of the capacitor, which is a measure of its ability to store charge. The larger the capacitance, the more charge can be stored on the plates.

How does the distance between the plates of a capacitor affect the charges on the other side?

The distance between the plates of a capacitor affects the electric field between them, which in turn affects the charges on the other side of the plates. As the distance between the plates increases, the electric field decreases, resulting in a decrease in the amount of charges on the other side.

What happens to the charges on the other side of the plates of a capacitor when the capacitor is disconnected from a power source?

When a capacitor is disconnected from a power source, the charges on the other side of the plates will remain in place. However, without a power source, the capacitor will eventually discharge and the charges on both sides will equalize.

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