Author: Hemant More

Ammeter and Voltmeter

Science > Physics > Magnetic Effect of Electric Current > Ammeter and Voltmeter Ammeter: An ammeter is an electrical measurement device (apparatus) which is used to measure the electric current in the electrical circuit. Requirements of Good Ammeter: The resistance of an ammeter must be as small as possible. The ideal resistance of an ammeter […]

Tags Accuracy of moving coil galvanometer, Ammeter, Electromagnets, High value resistance, Magnetic effect of electric current, Magnetic field, MCG, Sensitivity of moving coil galvanometer, Shunt, Shunting, Voltmeter

Physics

Moving Coil Galvanometer

Science > Physics > Magnetic Effect of Electric Current > Moving Coil Galvanometer In this article, we shall study principle, construction, working, sensitivity and accuracy of the moving coil galvanometer Principle: When a current-carrying coil is suspended in a uniform magnetic field it is acted upon by a torque. Under the action of this torque, […]

Tags Accuracy of moving coil galvanometer, Electromagnets, Magnetic effect of electric current, Magnetic field, MCG, Pivoted type, Sensitivity of moving coil galvanometer, Suspended type

Physics

Ampere’s law

Science > Physics > Magnetic Effect of Electric Current > Ampere’s law In this article, we shall study the Ampere’s law and its application in finding magnetic induction due to long straight conductor, solenoid and toroid. Statement: The line integral of the magnetic field B around any closed path is equal to μ0 times the net […]

Tags Current carrying conductor, Electromagnets, Magnetic effect of electric current, Magnetic field, Solenoid, Toroid

Physical Chemistry

Electrochemical Series and its Applications

Post author By Hemant More
Post date December 24, 2019
13 Comments on Electrochemical Series and its Applications

Science > Chemistry > Electrochemistry > Electrochemical Series A series of electrodes or half cells arranged in order of their increasing standard oxidation potentials or in the decreasing order of their standard reduction potentials is called an electromotive force series or electrochemical series. Electrochemical series is also known as e.m.f. series Characteristics Electrochemical Series: In […]

Tags Anion, Anode, Cathode, Cation, Cell reaction, Construction of cell, Convention of representation of cell, Corrosion treatment, Displacement reaction, Electrochemical cell, Electrode, Electrode couple, Electrolyte, Electrolytic cell, Electropositivity of metal, EMF series, Gas electrode, Metal - metal ion electrode, Metal-Sparingly Soluble Metal Salt Electrode, Nernst equation, Nernst theory, Non-electrolyte, Oxidant, Oxidation, Oxidation electrode potential, Oxidation potential, Oxidising agent, Products of electrolysis, Reactivity of metal, Redox electrode, Redox potential, Redox reaction, Reducing agent, Reductant, Reduction, Reduction electrode potential, Reduction potential, Reference electrode, Reversibility of cell, Single electrode, Single electrode potential, Solution pressure, Spontaneity of redox reaction, Standard cell potential, Standard electrode potential, Standard emf of cell, Standard oxidation potential, Standard reduction potential, Thermal stability of metallic oxides, Voltaic cell, Working of the cell

Physical Chemistry

Use of Nernst Equation

Science > Chemistry > Electrochemistry > Use of Nernst Equation In this article, we shall study the use of the Nernst equation to find e.m.f. of cell and electrodes. Convention Followed While Calculation of Cell Potential (e.m.f.): In the symbolic representation of the cell, the right-hand side electrode is the cathode (positive electrode) and the […]

Tags Anion, Anode, Button cell, Calomel electrode, Cathode, Cation, Cell reaction, Charging of cell, Chlorine gas electrode, Construction of cell, Convention of representation of cell, Coulomb, Daniel cell, De-electronation, Discharging of cell, Dry Cell, Electrochemical cell, Electrode, Electrode couple, Electrolyte, Electrolytic cell, Electronation, emff of cell, Equilibrium constant., Fuel cell, Galvanic cell, Gas electrode, Gibb's energy change, Indicator electrode, Lead accumulator, Leclanche cell, Maintenance of lead accumulator, Metal - metal ion electrode, Metal-Sparingly Soluble Metal Salt Electrode, Nernst equation, Nernst theory, Nickel cadmium cell, Non-electrolyte, Osmotic pressure, Oxidation, Oxidation electrode potential, Oxidation potential, Oxygen gas electrode, Primary cell, Redox electrode, Redox potential, Redox reaction, Reduction, Reduction electrode potential, Reduction potential, Reference electrode, Reversibility of cell, Salt bridge, Secondary cell, SHE, Single electrode, Single electrode potential, Solution pressure, Standard cell potential, Standard electrode potential, Standard emf of cell, Standard Hydrogen Electrode, Standard oxidation potential, Standard reduction potential, Voltaic cell, watt, Working of the cell

Physical Chemistry

Concept of Electrode Potential: Nernst Theory

Post author By Hemant More
Post date December 24, 2019
No Comments on Concept of Electrode Potential: Nernst Theory

Science > Chemistry > Electrochemistry > Nernst Theory In this article, we shall study the Nernst theory of electrode potential, Nernst equation, and its use. Single Electrode or Half cell or Electrode Couple: A single electrode or half cell or electrode couple is produced when a metal is dipped in the solution of its own […]

Tags Anion, Anode, Button cell, Calomel electrode, Cathode, Cation, Cell reaction, Charging of cell, Chlorine gas electrode, Construction of cell, Convention of representation of cell, Coulomb, Daniel cell, De-electronation, Discharging of cell, Dry Cell, Electrochemical cell, Electrode, Electrode couple, Electrolyte, Electrolytic cell, Electronation, emff of cell, Fuel cell, Galvanic cell, Gas electrode, Indicator electrode, Lead accumulator, Leclanche cell, Maintenance of lead accumulator, Metal - metal ion electrode, Metal-Sparingly Soluble Metal Salt Electrode, Nernst equation, Nernst theory, Nickel cadmium cell, Non-electrolyte, Osmotic pressure, Oxidation, Oxidation potential, Oxygen gas electrode, Primary cell, Redox electrode, Redox potential, Redox reaction, Reduction, Reduction potential, Reference electrode, Reversibility of cell, Salt bridge, Secondary cell, SHE, Single electrode, Solution pressure, Standard Hydrogen Electrode, Voltaic cell, watt, Working of the cell

Physical Chemistry

Types of Electrodes

Science > Chemistry > Electrochemistry > Types of Electrodes In this article, we shall study different types of electrodes, their representation, writing cell reactions, and finding e.m.f. of a cell. There are four types of electrodes Gas electrodes Metal–sparingly soluble metal salt electrodes Metal – metal ion electrodes Redox Electrodes Gas Electrodes: A gas electrode […]

Tags Anion, Anode, Button cell, Calomel electrode, Cathode, Cation, Cell reaction, Charging of cell, Chlorine gas electrode, Construction of cell, Convention of representation of cell, Coulomb, Daniel cell, Discharging of cell, Dry Cell, Electrochemical cell, Electrode, Electrolyte, Electrolytic cell, emff of cell, Fuel cell, Galvanic cell, Gas electrode, Indicator electrode, Lead accumulator, Leclanche cell, Maintenance of lead accumulator, Metal - metal ion electrode, Metal-Sparingly Soluble Metal Salt Electrode, Nickel cadmium cell, Non-electrolyte, Oxidation, Oxidation potential, Oxygen gas electrode, Primary cell, Redox electrode, Redox potential, Redox reaction, Reduction, Reduction potential, Reference electrode, Reversibility of cell, Salt bridge, Secondary cell, SHE, Standard Hydrogen Electrode, Voltaic cell, watt, Working of the cell

Physical Chemistry

Reference Electrodes

Science > Chemistry > Electrochemistry > Reference Electrodes The electrode whose potential is arbitrarily fixed or is exactly known at a given constant temperature is known as a reference electrode. Using reference electrodes unknown potential of any other single electrode can be found out e.g. two commonly used reference electrodes are standard hydrogen electrode (SHE) […]

Physical Chemistry

Representation of Electrochemical Cell

Post author By Hemant More
Post date December 24, 2019
No Comments on Representation of Electrochemical Cell

Science > Chemistry > Electrochemistry > Representation of Electrochemical Cell In this article, we shall study the representation of cell using conventions on paper. We shall also discuss the construction and working of the salt bridge. Electrochemical (Voltaic or Galvanic) cell consists of two half cells. In one half-cell, an oxidation reaction takes place and […]

Physical Chemistry

Secondary Electrochemical Cells

Post author By Hemant More
Post date December 24, 2019
No Comments on Secondary Electrochemical Cells

Science > Chemistry > Electrochemistry > Secondary Electrochemical Cells In this article, we shall study the construction and working of lead accumulator, and Ni-Cd cells. Lead Accumulator: A lead accumulator is a secondary cell because electrical energy is not generated within the cell itself but it is previously stored in it from the external source. […]