Induced EMF, Magnetic Fields, and Numerical Problem Solving

Vocabulary terms and definitions covering induced EMF, magnetic flux, Ohm's law, Faraday's law of induction, and numerical problem-solving techniques from the lecture.

Applied force

The force denoted by a subscript on $f$ that is exerted on a conductor to make it move.

Deficiency of negative charges

The state within a material that corresponds to an excess of positive charges.

Phi ($\Phi_n$)

The Greek letter with subscript $n$ used in the course to represent magnetic flux.

Induced EMF

An electromotive force produced by a changing magnetic field rather than by a battery.

Simple EMF

An electromotive force that is produced by a battery.

$$\frac{dx}{dt}$$

The rate of change of distance, identified as velocity or speed.

Ohm's law

A fundamental equation used to determine the current ($I$) in a circuit.

SI units

The standard system of units into which given parameters must be converted prior to substituting them into an equation.

$$\frac{dB}{dt}$$

The mathematical term representing the rate of change of the magnetic field.

Faraday's law of induction

The principle used to calculate induced EMF, demonstrating that an electric field is produced by a changing magnetic field.

Motors and generators

Devices utilized in everyday applications, such as cars, that operate based on the principle of Faraday's law of induction.