
An air capacitor of capacity is connected to a constant voltage battery of 12 V. Now the space between the plates is filled with a liquid of dielectric constant 5. The additional charge that flows now, from the battery to the capacitor is:
(1)
(2)
(3)
(4)
Answer
156.3k+ views
Hint: We know that dielectric constant, also called relative permittivity or specific inductive capacity, property of an electrical insulating material (a dielectric) equal to the ratio of the capacitance of a capacitor filled with the given material to the capacitance of an identical capacitor in a vacuum without the dielectric material. Vacuum, Solids, Liquids and Gases can be a dielectric material. Some of the examples of solid dielectric materials are ceramics, paper, mica, glass etc. Liquid dielectric materials are distilled water, transformer oil etc. Gas dielectrics are nitrogen, dry air, helium, oxides of various metals etc.
Complete step by step answer:
We know that dielectric, insulating material or a very poor conductor of electric current. When dielectrics are placed in an electric field, practically no current flows in them because, unlike metals, they have no loosely bound, or free, electrons that may drift through the material. Instead, electric polarization occurs. Pure water is a non-polar dielectric. But they are not at rest and can't induce charges to produce electric fields like a solid dielectric. The motion of water molecules varies the capacity of a capacitance constantly. Therefore, water can't be used as a dielectric in a capacitor.
Dielectric materials are used in many applications such as: Electronic components such as capacitors (responsible for energy storage properties of the device) High-K / low-K materials widely used in Semiconductors to enhance performance and reduce device size (where K refers to permittivity of dielectric constant).
Initial charge
After filled with dielectric liquid the charge
After we put the values we get:
The (additional) charge that flows now from battery to the
capacitor
So, the correct option is option C.
Note: We know that a capacitor (originally known as a condenser) is a passive two-terminal electrical component used to store energy electrostatically in an electric field. The forms of practical capacitors vary widely, but all contain at least two electrical conductors (plates) separated by a dielectric ( insulator). The potential energy in a capacitor is stored in an electric field, where a battery stores its potential energy in a chemical form. However, in general batteries provide higher energy density for storage, while capacitors have more rapid charge and discharge capabilities (greater Power density). Ceramic capacitors are well-suited for high frequencies and high current pulse loads. Because the thickness of the ceramic dielectric layer can be easily controlled and produced by the desired application voltage, ceramic capacitors are available with rated voltages up to the 30 kV range.
Complete step by step answer:
We know that dielectric, insulating material or a very poor conductor of electric current. When dielectrics are placed in an electric field, practically no current flows in them because, unlike metals, they have no loosely bound, or free, electrons that may drift through the material. Instead, electric polarization occurs. Pure water is a non-polar dielectric. But they are not at rest and can't induce charges to produce electric fields like a solid dielectric. The motion of water molecules varies the capacity of a capacitance constantly. Therefore, water can't be used as a dielectric in a capacitor.
Dielectric materials are used in many applications such as: Electronic components such as capacitors (responsible for energy storage properties of the device) High-K / low-K materials widely used in Semiconductors to enhance performance and reduce device size (where K refers to permittivity of dielectric constant).
Initial charge
After filled with dielectric liquid the charge
After we put the values we get:
The (additional) charge that flows now from battery to the
capacitor
So, the correct option is option C.
Note: We know that a capacitor (originally known as a condenser) is a passive two-terminal electrical component used to store energy electrostatically in an electric field. The forms of practical capacitors vary widely, but all contain at least two electrical conductors (plates) separated by a dielectric ( insulator). The potential energy in a capacitor is stored in an electric field, where a battery stores its potential energy in a chemical form. However, in general batteries provide higher energy density for storage, while capacitors have more rapid charge and discharge capabilities (greater Power density). Ceramic capacitors are well-suited for high frequencies and high current pulse loads. Because the thickness of the ceramic dielectric layer can be easily controlled and produced by the desired application voltage, ceramic capacitors are available with rated voltages up to the 30 kV range.
Latest Vedantu courses for you
Grade 11 Science PCM | CBSE | SCHOOL | English
CBSE (2025-26)
School Full course for CBSE students
₹41,848 per year
EMI starts from ₹3,487.34 per month
Recently Updated Pages
JEE Atomic Structure and Chemical Bonding important Concepts and Tips

JEE Amino Acids and Peptides Important Concepts and Tips for Exam Preparation

Wheatstone Bridge - Working Principle, Formula, Derivation, Application

Young's Double Slit Experiment Step by Step Derivation

JEE Electricity and Magnetism Important Concepts and Tips for Exam Preparation

Chemical Properties of Hydrogen - Important Concepts for JEE Exam Preparation

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility, & More

JEE Main 2025: Derivation of Equation of Trajectory in Physics

Electric Field Due to Uniformly Charged Ring for JEE Main 2025 - Formula and Derivation

Electric field due to uniformly charged sphere class 12 physics JEE_Main

Uniform Acceleration

Degree of Dissociation and Its Formula With Solved Example for JEE

Other Pages
JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

JEE Advanced Weightage 2025 Chapter-Wise for Physics, Maths and Chemistry

JEE Advanced 2025 Notes

Displacement-Time Graph and Velocity-Time Graph for JEE

Geostationary Satellites and Geosynchronous Satellites - JEE Important Topic

Electrical Field of Charged Spherical Shell - JEE
