Faraday's Law Basics

Faraday's Law

States a voltage is induced when magnetic flux changes

Factors Influencing Voltage

Physical aspects affecting voltage production

Voltage Induced Definition

Voltage generated in a coil due to flux change

Circular Conductor Flux Calculation

Determining magnetic flux through a conductor

Square Wire Coil Parameters

Details of a coil's dimensions, turns, and flux change

Induced EMF Calculation

Calculating induced electromotive force

Induced Current Calculation

Determining the magnitude of induced current

Inductors

are two terminal passive energy storage devices, also known as the coil, choke, or reactor.

Inductance Formula

Mathematical representation of inductance

Self-Inductance

Inductance due to a change in current

Mutual Inductance

Inductance between two coils

Self-Inductance Working

Explanation of self-inductance mechanism

AC Circuit

An electrical circuit with alternating current

Impedance of Circuit

Total opposition to current flow in a circuit

RL Circuit Components

Elements and behavior in an RL circuit

RC Circuit Components

Elements and behavior in an RC circuit

RLC Circuit Components

Elements and behavior in an RLC circuit

AC Circuit Resistor Calculation

Determining current in a resistor in an AC circuit

Resistor Impedance

Resistance to current flow in circuits

Inductive Time Constant

Time taken for current to reach peak in an RL circuit

Electromagnetic Induction

A current produced because of voltage production (electromotive force) due to a changing magnetic field.

Electromagnetic Induction

The ability of a magnetic field to create a current inside a conductor

Electromagnetic Induction

Discovered by Michael Faraday in 1831, and James Clerk Maxwell mathematically described it as Faraday’s law of induction.

Michael Faraday

English physicist and chemist whose many experiments contributed greatly to the understanding of electromagnetism.

Faraday’s Law of Induction

Also called electromagnetic induction, the production of voltage (or EMF) across an electrical conductor placed inside a varying magnetic field.

Faraday’s Law of Induction

According to Faraday’s law, for a closed circuit, the induced electromotive force is equal to the rate of change of the magnetic flux enclosed by the circuit.

Number of Coils

The induced voltage is directly proportional to the number of turns/coils of the wire. Greater the number of turns, greater is voltage produced

Changing Magnetic Field

altering the magnetic field can be done by either moving the magnetic field around the conductor or moving the conductor in the magnetic field.

Inductance

It is measured in Henry (H), and devices like inductors are designed to have specific inductance values to regulate current flow in circuits.

Inductance

is the tendency of an electrical conductor to oppose a change in the electric current flowing through it.

Joseph Henry

He discovered the electromagnetic phenomenon of inductance.

Heinrich Friedrich Emil Lenz

• He proposed Lenz’s law, a modification of Faraday’s Law of electromagnetic induction.

• The symbol “L” was chosen to represent “inductance” in his honour.

Inductance

It affects the time it takes for current to rise or fall in a circuit, influencing circuit behavior and response times.

Inductance

arises due to the magnetic field produced by the flow of current through a conductor, which induces a voltage that opposes the change in current.

It is the property of an electric circuit which causes the circuit to oppose any change in the circuit.