Electromagnetic Fields

Study the basics of electromagnetic fields and their effects.

Sample Cards

Electric Field

The region around a charged particle where it exerts force on other charges

Magnetic Field

The region around a magnet where magnetic forces are exerted

Faraday's Law of Induction

The law that relates changing magnetic fields to induced electric fields

Given by the right-hand rule

The direction of the magnetic field around a current-carrying wire

Ferromagnetic material

A material that enhances the magnetic field within a coil of wire

Electromagnetic Waves

Waves composed of oscillating electric and magnetic fields, perpendicular to each other and propa...

Maxwell’s Equations

A set of four differential equations that describe how electric and magnetic fields interact

Speed of Light

The speed at which electromagnetic waves in a vacuum travel, approximately 3 x 10^8 m/s

Electromagnetic Fields Flashcards

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What's in this deck?

Electric Field

The region around a charged particle where it exerts force on other charges

The region around a charged particle where it exerts force on other charges

Electric Field

Magnetic Field

The region around a magnet where magnetic forces are exerted

The region around a magnet where magnetic forces are exerted

Magnetic Field

Faraday's Law of Induction

The law that relates changing magnetic fields to induced electric fields

The law that relates changing magnetic fields to induced electric fields

Faraday's Law of Induction

Given by the right-hand rule

The direction of the magnetic field around a current-carrying wire

The direction of the magnetic field around a current-carrying wire

Given by the right-hand rule

Ferromagnetic material

A material that enhances the magnetic field within a coil of wire

A material that enhances the magnetic field within a coil of wire

Ferromagnetic material

Electromagnetic Waves

Waves composed of oscillating electric and magnetic fields, perpendicular to each other and propagating through space

Waves composed of oscillating electric and magnetic fields, perpendicular to each other and propagating through space

Electromagnetic Waves

Maxwell’s Equations

A set of four differential equations that describe how electric and magnetic fields interact

A set of four differential equations that describe how electric and magnetic fields interact

Maxwell’s Equations

Speed of Light

The speed at which electromagnetic waves in a vacuum travel, approximately 3 x 10^8 m/s

The speed at which electromagnetic waves in a vacuum travel, approximately 3 x 10^8 m/s

Speed of Light

Magnetic Flux

A measure of the total magnetic field which passes through a given area

A measure of the total magnetic field which passes through a given area

Magnetic Flux

Electromagnetic Spectrum

The complete range of frequencies over which electromagnetic radiation exists from radio waves to gamma waves

The complete range of frequencies over which electromagnetic radiation exists from radio waves to gamma waves

Electromagnetic Spectrum

Induced EMF

Electromotive force produced by a change in magnetic field

Electromotive force produced by a change in magnetic field

Induced EMF

Effect of Magnetic Fields on Moving Charges

Magnetic field causes a moving charge to move in a circular path

Magnetic field causes a moving charge to move in a circular path

Effect of Magnetic Fields on Moving Charges

Interaction of Electric Fields and Conductors

Electric fields exert forces on charges in a conductor causing them to move

Electric fields exert forces on charges in a conductor causing them to move

Interaction of Electric Fields and Conductors

Magnetic Fields Around Solenoids

The field inside a solenoid is strong and uniform, outside is weak

The field inside a solenoid is strong and uniform, outside is weak

Magnetic Fields Around Solenoids

Use of Electromagnetic Fields in Transformers

Changing electric field creates a changing magnetic field, which induces voltage in a secondary coil

Changing electric field creates a changing magnetic field, which induces voltage in a secondary coil

Use of Electromagnetic Fields in Transformers

Electromagnetic Fields in Communication Technologies

Used in transmission of radio, TV signals etc.

Used in transmission of radio, TV signals etc.

Electromagnetic Fields in Communication Technologies

Electromagnetic Radiation

Energy that is propagated through space in the form of electromagnetic waves

Energy that is propagated through space in the form of electromagnetic waves

Electromagnetic Radiation

Propagation of Electromagnetic Fields in Space

Travel at the speed of light carrying electromagnetic radiation energy

Travel at the speed of light carrying electromagnetic radiation energy

Propagation of Electromagnetic Fields in Space

Role of Ferromagnetic Materials in Magnetic Fields

They enhance the magnetic field within a coil of wire

They enhance the magnetic field within a coil of wire

Role of Ferromagnetic Materials in Magnetic Fields

Magnetic Fields Around Current-Carrying Wires

Create a magnetic field in a circular path around the wire

Create a magnetic field in a circular path around the wire

Magnetic Fields Around Current-Carrying Wires

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