Dielectric Slabs in Series

A dielectric is defined as a non-conducting material that does not allow the current to flow through it. The material used in these dielectric slabs does not allow the conduction of current. They are used in many electrical devices to restrict current flow. Dielectric slabs do not allow the flow of current because they do not have any type of charge carrier, due to which they also work as an insulator in devices. Dielectric slabs in series is a combination where many dielectric slabs are joined one by one in a series. 

Dielectric slabs in series 

Dielectric slabs in series can be defined as a combination that does not allow the flow of electrons, due to which the electric current does not flow through them. Unlike other conducting materials, dielectric slabs in series do not have free electrons to facilitate the flow of current. 

In these dielectric slabs in series, a dipole moment is induced by the externally applied electric field. This electric field adjusts the molecules of the dielectric slabs in sequence, due to which all the molecules start flowing in the direction of the electric field. It results in the formation of a dipole moment, and this dipole moment starts opposing the externally applied electric field. It means the electric field arranges the molecules in the sequence by its force, and consequently, these molecules lay force in the opposition of that electric field. However, the applied force of the dielectric slab in series does not stop the flow of the electric field. It just reduces the amount of electric field. That is why dielectric slabs in series are used to reduce the amount of electric field. 

Examples of dielectric slabs in series 

The dipole generated in dielectric slabs in series results in the opposition of the electric field. This opposition to the electric field is called polarisation. So, all polarising objects are examples of dielectric slabs in series. The slabs are usually used to restrict current flow in any device and reduce the amount of current flowing through it. Porcelain, plastic, metal oxides, mica, glass, etc., are examples of dielectrics. A parallel plate capacitor is an example that uses two dielectric slabs in series. Dielectric materials are present in three different forms. 

• Dielectrics in solid form: Mica, plastic, glass, ceramic
• Dielectrics in liquid form: Distilled Water
• Dielectrics in the gaseous form: Vacuum, nitrogen gas, hydrogen gas, and dry air. 

Properties of dielectric slabs in series 

Let’s understand the different properties of dielectric slabs in series. 

• In dielectric slabs in series, the energy gap is very large, due to which it restricts large amounts of current flow. 
• The temperature coefficient based on resistance is very low and sometimes ranges negatively in these dielectric slabs. On the other hand, these dielectric slabs’ insulation capacity is very high and large. 
• The resistance and resistivity of dielectric slabs in series are very high, due to which they are used in large electrical devices. 
• The force of attraction between the electrons of dielectric slabs in series is very high, due to which they are capable of restricting a high amount of electric field. 
• The conductivity of dielectric slabs in series is very low and ranges in negative. Due to this, they are used to restrict the high flow of current in electronic devices. 

Insulating properties of dielectric slabs in series 

Let’s understand the different parameters that demonstrate that the dielectric slabs placed in series have high insulation capacity. 

• The breakdown voltage of the dielectric slab in series
• Permittivity and conductivity of the material used in dielectric slabs in series

Applications of dielectrics slab in series 

Let’s understand the various applications of dielectrics slabs in series. 

The dielectric slabs are used for storing current and charges. The electrons of dielectric slabs in series are bonded with a high force of attraction, due to which they can store large amounts of charge for a long time. Although these dielectric slabs’ properties are similar to insulators, insulators restrict the charge by not allowing it to flow through them. In contrast, dielectric slabs in series restrict the current by storing the large charge quantity. Due to this factor, various electronic appliances use them to restrict a large amount of charge by storing it. 

• Dielectric slabs in series with high permittivity are used in semiconductor-based devices. 
• Dielectric slabs in series are used in electrets, which work electrostatic, similar to magnets.

Conclusion 

Dielectric slabs in series work as insulators, but they are not insulators. The best thing about dielectric slabs in series is that they facilitate the generation of dipole moments with less energy loss. However, the electrons of dielectric slabs are highly attracted but not as highly bounded as an insulator. Due to this, dielectric slabs in series can store the charge while insulators restrict. Dielectric slabs in series are widely used in various electronic devices. They are mainly used in devices where storing a large amount of charge and resistance of current is required.