Electric current: Ohm’s law, resistivity

As we know, electromotive force and current change continuously in an alternating current concerning time. Calculating the power of an ac circuit is challenging as these two properties change constantly. Power can be calculated by doing the product of voltage and time. By calculating the circuit’s instantaneous power, we can calculate the power of an […]

Many inventions and discoveries have been produced in order to make human life more convenient and enjoyable. The discovery of current electricity is an example of a discovery on which we have come to rely heavily in order to make our lives easier. Benjamin Franklin is recognised as being the first person to discover electricity.

Ohm’s law is key to understanding how resistance works. The relationship between the current flowing in a circuit and the potential difference across its terminals was found by Georg Simon Ohm In 1827. He stated that when the temperature remains constant, the current in a circuit is directly proportional to the potential difference across the

Reactance (X) is defined as the opposition present in alternating current by either inductance or capacitance in electrical circuits. The phrase ‘reactance’ was coined by a French architect named M. Hospitalier in the year 1893. Sometimes, reactance and resistance are confused with one another but they are not the same. The difference between reactance and

Reducing the complexity of a circuit by merging related parts with series or parallel connections is one of the simplest and most beneficial things. Resistors, voltage sources, and current sources can all be combined and replaced with equivalents in the right circumstances. Let’s begin with resistors. In many cases, complicated resistor networks may be reduced

If the two conditions (series and parallel) in an electronic circuit are satisfied and the circuit is functioning correctly, then the charge flows through the circuit. The idea is that there is a flow of electrons or an electric charge flow. In this sense, the term “current” merely means that something is happening within the

Wattless current is also known as idle currents. The current which is involved in an alternating circuit(AC) is known as wattless currents, as the average power consumed in such a type of circuit corresponds to zero. In other words, the current which flows through such an electric circuit in which the power consumption is zero

Any movement of electric charge carriers, such as subatomic charged particles (e.g., electrons with negative charge, protons with positive charge), ions (atoms that have lost or acquired one or more electrons), or holes, is referred to as electric current (electron deficiencies that may be thought of as positive particles). The quantity of charge passing any

The German physicist – Georg Simon Ohm was the first person to study the relationship between resistance, current and voltage. He answered the question ‘what is resistance’, stating that resistance is the measure of opposition to the flow of electric current in a circuit. The S.I. unit of resistance is known as Ohms, after its

The German physicist – Georg Simon Ohm was the first person to study the relationship between resistance, current and voltage. He answered the question ‘what is resistance’, stating that resistance is the measure of opposition to the flow of electric current in a circuit. The S.I. unit of resistance is known as Ohms, after its