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Circuit Theory: As the name suggests, circuit theory deals with electrical circuit. An engineer can predict the performance of complicated electrical networks with the help of circuit theory. But this theory has certain limitations like :

  • It cannot be applied in free space.
  • It is useful only at low frequencies.

This theory is unsuccessful in explaining the radiation of electromagnetic waves into space in radio communications.

It cannot be used to analyse or design a complete communication system. Example: Radio Communication System.

Electromagnetic Field Theory. Although electromagnetic Field Theory (EMFT) is complex in comparison with circuit theory but EMFT is simplified by using appropriate mathematics. This theory deals with E and H vectors, whereas circuit theory deals with voltages and currents.

This theory has following advantages in comparison to circuit theory:

  • It is also applicable in free space.
  • It is useful at all frequencies, particularly at high frequencies,
  • The radiation effect can be considered.
  • This theory can be used to analyse or design a complete communication system. Example: Wireless Communication, Radio Communication.
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What is the relationship between the electric field formula and voltage in an electric circuit?

The electric field formula and voltage in an electric circuit are related because voltage is a measure of the electric potential difference between two points in a circuit, and the electric field is the force that causes charges to move between those points. In simple terms, the electric field creates the voltage that drives the flow of electric current in a circuit.


The difference in energy per unit charge as a charge moves between two points in the path of a circuit?

The potential difference between two points in a circuit is the energy required per unit charge to move a charge between those points. It represents the work done by an electric field on a charge as it moves through the circuit.


What causes charges to move in a curciut?

Charges move in a circuit due to the presence of an electric field established by a potential difference (voltage) between two points in the circuit. This electric field exerts a force on the charges, causing them to flow in response to the potential difference and complete a closed loop.


Distinguish field theory and circuit theory?

circuit theory: 1.this analysis is oriented by its own. 2.applicable only for portion of RF range. 3.the dependent and independent parameters,I and V are directly obtained for the given circuit. 4.parameters of medium are not involved. 5.laplace transform is employed. field theory: 1.envolved from transmission theory. 2.beyond RF range. 3.not directly through E and H. 4.parameter of medium are involved in the analysis. 5.maxwell equqtion is employed.


What is th potential difference that causes charges to move in a circuit?

The answer is voltage, resistance, electric discharge, and current. It is caused by a difference in energy stability between two points that favors a charge to move down a potential difference.

Related Questions

What is the Relation between Field Theory and Circuit Theory?

Circuit Theory: As the name suggests, circuit theory deals with electrical circuit. An engineer can predict the performance of complicated electrical networks with the help of circuit theory. But this theory has certain limitations like :It cannot be applied in free space.It is useful only at low frequencies.This theory is unsuccessful in explaining the radiation of electromagnetic waves into space in radio communications.It cannot be used to analyse or design a complete communication system. Example: Radio Communication System.Electromagnetic Field Theory. Although electromagnetic Field Theory (EMFT) is complex in comparison with circuit theory but EMFT is simplified by using appropriate mathematics. This theory deals with E and H vectors, whereas circuit theory deals with voltages and currents.This theory has following advantages in comparison to circuit theory:It is also applicable in free space.It is useful at all frequencies, particularly at high frequencies,The radiation effect can be considered.This theory can be used to analyse or design a complete communication system. Example: Wireless Communication, Radio Communication.Reference: This article is referred from my authored book "concepts of electromagnetic field theory". In case of any problem, please post in the comment section.


What is the relationship between the electric field formula and voltage in an electric circuit?

The electric field formula and voltage in an electric circuit are related because voltage is a measure of the electric potential difference between two points in a circuit, and the electric field is the force that causes charges to move between those points. In simple terms, the electric field creates the voltage that drives the flow of electric current in a circuit.


The difference in energy per unit charge as a charge moves between two points in the path of a circuit?

The potential difference between two points in a circuit is the energy required per unit charge to move a charge between those points. It represents the work done by an electric field on a charge as it moves through the circuit.


What causes charges to move in a curciut?

Charges move in a circuit due to the presence of an electric field established by a potential difference (voltage) between two points in the circuit. This electric field exerts a force on the charges, causing them to flow in response to the potential difference and complete a closed loop.


Distinguish field theory and circuit theory?

circuit theory: 1.this analysis is oriented by its own. 2.applicable only for portion of RF range. 3.the dependent and independent parameters,I and V are directly obtained for the given circuit. 4.parameters of medium are not involved. 5.laplace transform is employed. field theory: 1.envolved from transmission theory. 2.beyond RF range. 3.not directly through E and H. 4.parameter of medium are involved in the analysis. 5.maxwell equqtion is employed.


What is th potential difference that causes charges to move in a circuit?

The answer is voltage, resistance, electric discharge, and current. It is caused by a difference in energy stability between two points that favors a charge to move down a potential difference.


What is difference between valence band theory and crystal field theory?

Valence band theory describes the electronic structure of solids based on the energy levels of electrons in the valence band of the material. On the other hand, crystal field theory focuses on the interaction between the d-orbitals of transition metal ions and the surrounding ligands, which results in the splitting of d-orbitals into different energy levels.


What is the difference between a field survey and a field experiment?

differentiate between field experiment and survey and advantages


What is the difference between bench and field springer spaniel variety?

whats the difference in temperament between field springer spanialels and show.


What is the method used to calculate the crystal field splitting energy in transition metal complexes?

The method used to calculate the crystal field splitting energy in transition metal complexes is called the ligand field theory. This theory considers the interactions between the metal ion and the surrounding ligands to determine the energy difference between the d orbitals in the metal ion.


How does the composition of the inner and outer core explain this theory?

Dynamo theory is the idea that a magnetic field generator exists within the Earth's outer core. It is this generator that explains the difference between the inner and outer core.


What is the relationship between the electric field and current in a circuit?

The electric field in a circuit is directly related to the current flowing through it. The electric field is what drives the flow of electric charge, which is the current. In other words, the presence of an electric field is necessary for current to flow in a circuit.