Current Electricity

The notion of Ohm’s Law underpins the fundamentals of electronics engineering. Current cannot flow in wires without Ohm’s Law, the voltage cannot exist without Ohm’s Law, and no circuit can function without Ohm’s Law. It’s just as significant in electronics as Newton’s Law is in physics. Of course, many other fundamental concepts and laws of […]

We’ve all heard of electricity. It is due to the flow of electrons. As a result, the term electricity is derived from the word electrons. A battery does not work because there is no passage of electric current if it is held up in air. As a result, you require a circuit. In layman’s terms,

A unidirectional flow of electric charge is known as a direct current (DC). The most important example of DC is an electrochemical cell. Direct current has the flexibility to flow through conductors, mainly wires. The only difference between DC and alternating current (AC) is that it flows in only one direction. Galvanic current is the

Ampere’s law in electromagnetism helps define the relativity between the electromagnetic field and electric flow. According to this law, the size of the electric flow is relative to the field generated by the electric flow itself, with a consistent proportionality equivalent to the permeability of free space.  This law permits us to keep an appropriate

If the electric current in a circuit travels back and forth, it is called an alternating current. The voltage in alternating current circuits also changes periodically. AC is used to transmit electricity at high voltages over long distances. It is more efficient as energy wastage in the form of heat is lower during this process

Impedance is the total amount of opposition to the flow of current in a circuit. Impedance works due to the actions of inductive reactance, capacitive reactance and resistance on the circuit, which combine to resist the flow of current. Ohm () is used for measuring impedance. Since the impact of capacitive reactance and inductive reactance

Conductors are defined as the materials or substances that permit electricity to pass through them. Similarly, conductors allow heat to be transmitted through them. In every conductor, an electrical charge is present. It starts moving when an electric potential difference is sent across the material’s different points. Electric current is this flow of charge that

In the case of some electrical appliances, the chemical reactions that take place in the cells on which they are powered result in a potential difference between their terminals, which causes the electrons to be propelled in their respective directions. Energy must be expanded by the source in order to maintain the current flow. Some

A cell or an electrochemical cell are devices applied for developing electrical energy from chemical processes or vice versa. EMF stands for Electromotive Force and is measured in coulombs of charge. It is created by pressure or an electric intensity due to electrical energy or a source.  Internal resistance is the barrier to the passage

Every substance is made up of atoms consisting of negatively charged electrons. Within the atom, these negatively charged electrons move in a random pattern. The movement of electrons results in the generation of electricity. However, electrons in a material have a zero average velocity because of their random motion.  Drift velocity refers to the velocity