Electricity and Magnetism Lecture Notes

These flashcards cover key concepts in Electricity and Magnetism based on the lecture notes.

Atoms have the same number of protons and __.

Electrons.

Conductors allow __ to flow within them.

Charges.

Insulators are materials that impede the __ of electrons from atom to atom.

Free flow.

Electric current is the continuous movement or flow of __ through a material in a circuit.

Electric charge.

Voltage is the energy needed to push one __ of charge through an electric circuit.

Coulomb.

Resistance is a measure of how difficult it is for charges to __ through a material.

Flow.

The property of a material which determines its electrical resistance is called __.

Resistivity.

Ohm's Law states that __ = I × R.

V.

A fixed resistor limits the electric current in a circuit by absorbing electric energy and converting it to __.

Heat energy.

An electric circuit is a closed-loop/path forming a network of electrical components where __ can flow.

Electrons.

A magnet produces an invisible region around it called a __.

Magnetic field.

Like magnetic poles __ each other, and unlike magnetic poles attract each other.

Repel.

Magnetic field lines are conventionally drawn from the north seeking pole to the __ seeking pole.

South.

The strength of the magnetic field is shown by the density of the __ lines.

Field.

Freely suspended magnets always point in a __ direction.

North-south.

Ferromagnetic materials are objects that exhibit __ properties.

Magnetic.