Electrostatics – Hub of related Posts

In this post, we will talk about electric charge density for the distribution of charge, types of such charge densities, formulas, and their application areas. Electric Charge Density - types ...
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In this page, you will get the formulas required to calculate the electric field intensity due to an electric dipole on axial and equatorial points. The vector forms of these ...
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In this post, we will find the nature of the electric potential inside a charged conductor. We will show that the electric potential inside a charged conductor is constant. Electric ...
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In this post, we will find the nature of the electric field inside a charged conductor. We will show that the electric field inside a charged conductor is zero. Also, ...
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In this post, we will cover the definition of Gaussian surface and its examples. We will also study the properties of the Gaussian surface. [ Read Gauss' Law statement and ...
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Capacitors and their usage is the topic of this post. The capacitor is a component that has the ability or "capacity" to store energy in the form of an electrical ...
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In this post, we have presented fundamental and conceptual questions and answers based on parallel plate capacitors and dielectrics between the plates. This Capacitor and dielectric Question set will certainly ...
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A capacitor is charged by connecting it to a battery or to a constant-voltage power supply to create a circuit. Charge flows to the capacitor from the battery or power ...
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In this Question set, we will collect interesting questions related to conducting sphere from the electrostatics chapter, and also will post answers to the selected ones. Conducting sphere - Questions ...
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The electrostatic field inside any isolated conductor is always zero. In a cavity in a conductor, the net charge and the electric field are always zero. Let's see how we ...
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In this post, we have presented a collection of numerical problems on Energy Stored in Capacitors in the form of a numerical worksheet. This is good for grade 11 and ...
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In this post, we have presented a collection of numerical problems on Parallel-plate capacitors in the form of a numerical worksheet. This is good for grade 11 and grade 12 ...
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In this post, we will see how Polarization of a Dielectric between parallel plates of a capacitor happens with the help of an external electric field. The potential difference V0 ...
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In this post, we will solve a numerical problem on the dielectric strength and dielectric constant of capacitor, maximum electric field, maximum potential difference, maximum charge, etc. Numerical problem on ...
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An electrolytic capacitor is often used to store large amounts of charge at relatively low voltages. Structure of electrolytic capacitors | dielectric formation This device, shown in Figure 1, consists ...
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Dielectric strength of a dielectric is the maximum electric field that the dielectric can withstand with its insulating properties intact. In other words, the dielectric strength equals the maximum electric ...
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Series Combination of capacitors Two capacitors connected as shown in Figure 1a and the equivalent circuit diagram in Figure 1b are known as a series combination of capacitors. The left ...
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Parallel Combination of capacitors Two capacitors connected as shown in Figure 1a are known as a parallel combination of capacitors. Figure 1b shows a circuit diagram for this combination of ...
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In this post, we will derive the equation of the Energy density in charged parallel plate capacitor. Energy stored in parallel plate capacitor U = (1/2) C V2 where, C ...
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Energy stored in combination of Capacitors equals the sum of the energies stored in individual capacitors. Let's see how we can show this mathematically using equations. To find out the ...
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Defibrillator - application of Capacitors in the medical field One gadget in which capacitors play a significant role is the defibrillator. A defibrillator has a large capacitor and when it ...
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In this post, we discuss the concept of voltage (or Potential Difference) in terms of work done in separating charges. Moving charges give rise to electricity. For charges to move, ...
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At a point between two plates of the parallel plate capacitor, the Electric field generated by the combined effect of the 2 plates of the capacitor can be expressed as: ...
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When a charged rubber rod is brought close to a thin stream of water, the water is attracted toward the rod and the stream is bent. Water molecules have a ...
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Touch screens are quite common these days. In this post, we will discuss the physics behind the working principles of different touch screens. Specifically speaking, we will cover here the ...
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When a negatively charged rubber comb is brought near small pieces of paper, the charges in the paper molecules are acted on by electric forces - positive charges are attracted, ...
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In this post, we will talk about the difference between the law of charges & Coulomb’s law. An electric force exists between any two charged particles. On observation, it is ...
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A bunch of important formulas related to Capacitance & capacitors are listed below. capacitance of a conductor & capacitance of a spherical conductor - formulas capacitance of a conductor & ...
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Principle of a capacitor The principle of a capacitor is based on two physical events. These are as follows: 1 ) The capacitance of a conductor increases by a small ...
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In this post, we will discuss and derive the formula of the Capacitance of a Spherical Conductor. derivation of the Capacitance of a Spherical Conductor Suppose an isolated spherical conductor ...
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Consider two infinite plane parallel sheets of charge A and B, having surface charge densities equal to σ1 and σ2 respectively. (see the figures 1 to 4 in the following ...
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In this post, we will find out what a Faraday cage is and how this is related to lightning strikes. What is a Faraday Cage? A Faraday Cage, named after ...
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In one of the earlier posts, we discussed the working principle and the physical structure of the Van de Graaff generator. In this post, we will answer a few important ...
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This post presents a Physics Question Bank for class 12 covering the Electrostatics chapter. Definition type questions from the Electrostatics chapter 1) Define electric flux. 2) Define electric dipole moment ...
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In this post, we will take a few cases where the Equilibrium of electric forces on charges on one line happens. In every case, there are 3 charges on one ...
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How to draw the field lines due to a dipole? figure 1: field lines due to a dipole Fig. 1 depicts the field lines due to a dipole. For a ...
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Electric Field due to a thin infinite Plane Sheet of Charge In this section, we will derive the equation for the Electric Field due to a thin infinite Plane Sheet ...
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4) A positively charged object Q is placed as shown in the sketch. The potential difference between two points A and B is 4 x 10-4 V. (a) Calculate the ...
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3 ) A charge of +5nC is moved by a distance of 4 cm against a uniform electric field of magnitude 2 x 1012 NC-1 from A to B. (a) ...
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Question 2) In the picture below, X is a small negatively charged sphere with a mass of 10kg. It is suspended from the roof by an insulating rope which makes ...
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1 ) Determine the electrostatic force and gravitational force between two electrons 1ºA apart (i.e. the forces felt inside an atom) [ here is the complete worksheet: electrostatics worksheet 1 ...
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In this post, we publish a worksheet containing a bunch of numerical problems from the Electrostatics chapter of HS physics. This set of Electrostatics Numericals for class 12 includes problems ...
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In this post, we will study 2 formulas of the electric field due to a short dipole. These electric field formulas represent the following: (1) Electric Field Due to a ...
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Electric flux - definition, formula - In this post, we will define electric flux and study its equation. We will also study a few figures that come with numerical problems ...
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In this post, we will understand the fundamentals of Electric Charge through a set of questions and their answers. What is the electric charge? Electric charge is a physical property ...
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The potential difference between two points in a circuit is the electrical energy per unit charge. When this electrical energy is converted into other forms of energy (thermal, light, mechanical, ...
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In this post, we will analyze different scenarios of the motion of a charged particle in an electric field between two parallel plates. Effect of electric fields on the motion ...
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figure 1: Lines of equal potential The lines of equal potential difference between two parallel plates resemble those shown in figure 1. These lines are called equipotentials because they represent ...
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The electric field between two parallel plates:- is uniform in the region between the plates- becomes weaker at the edges (these are known as edge effects) as the field changes ...
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In this post, we will solve Numerical problems on electric potential energy. [Electric potential energy is also known as electrical potential energy] Numerical Problem based on electrical potential energy Suppose ...
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