Current Electricity

APE or anomalous photovoltaic effect refers to the photovoltaic effect in specific semiconductors and even insulators. The word “anomalous” here refers to the cases where the photovoltage remains larger than the bandgap that persists between the corresponding semiconductor.  Here, photovoltage refers to the open-circuit voltage caused by the light. As a result, you can witness […]

Internal resistance is the barrier to current flow supplied by the cells and batteries themselves, resulting in heat creation. Ohms are used for measuring internal resistance. The relation between electromotive force (e) and internal resistance (r) in cells is represented by: e = I (r + R) Where e is the electromotive force (Volts), R

Introduction What is Ampere? Ampere is named after Andre-Marie Ampere, a French physicist and mathematician. It is the SI unit of current. One amp of current is equivalent to one Coulomb of electrical charge, or 6.241018 charge carriers travelling through a cross section at a rate of 6.241018 per second. In other terms, one Ampere

Introduction The flow of electrical charges through a conductor from higher to lower potential is known as a current. There are two types of currents.  Direct current- DC  Alternating current- AC The current whose direction does not change with time through a load is known as direct current (DC), whereas the current whose direction changes

The amount of work a charged particle can do is the potential difference. The unit of potential difference is the differentiation in electric potential energy between the two distinct points. It can be used to answer how much work must be done to carry one Volt of charge between two points in a circuit. We

Electric potential difference is the electrical force, measured in volts, that drives current through a circuit. Talking about the derivation of electric potential difference, the electric potential difference between two points can be derived from the work done by a force moving a charge from one point to another. This work is equal to the

Transformers are a type of electrical device used to convert electric current generated from a specific source to power the load in the form of voltage or current. Transformers, also called power supplies, allow every electric circuit or device to work properly. There are many sources of electrical power supplies, such as solar power, cells

Electric generators are very common mechanical devices. There are mainly two electric generators: AC and DC generators. The primary role of a DC generator is to supply electricity by converting mechanical energy into an electric one. DC generators are constructed by following Faraday’s law of electromagnetic induction. They have applications in heavy industries and machinery.

According to Thévenin’s theorem, a useful potential difference between the terminals in a linear electric circuit may be described as an ideal voltage source in series with an impedance. This impedance is known as the source’s internal resistance. When the power source supplies current, the measured voltage output is lower than the no-load voltage; the

Typically, while examining the theory underlying electrical circuits, it is believed that all of the circuit components are perfect in their performance. A zero resistance battery is believed to exist in an ideal condition for the system’s battery in this case. However, this is not so in practice. When dealing with batteries in the real