Electrical Concepts and Components Flashcards

A set of vocabulary flashcards covering basic electrical principles, units of measurement, and circuit laws based on the lecture notes.

Battery

Storage of chemical energy to move charges.

Voltage

The energy level measurement

Current

The flow of electric charges.

Amps

The unit of measurement for current.

Alternating Current

The direction of current can go back and forth.

Direct Current

Current can go in one direction.

Electrical Conductor

Material where charge flows easy.

Electrical insulators

Materials that block the flow of current.

Electrical conductivity

Property of a material to allow current to flow.

Resistance

How easily charges flow through an object.

Ohms

Electrical resistance unit.

Ohms Law

Current = $\frac{\text{Voltage}}{R\text{esistance}}$

resistors

Used to control current of many circuits.

Potentiometer

A variable resistor

Watt

The unit of power in electric circuits

Kilowatt

$$1000\,\text{watts}$$

Horse Power

$$746\,\text{watts}$$

kilowatt-hour

A kilowatt of power that has been used for one hr.

Series Circuit

A circuit with only one path.

Parallel circuit

A circuit with more than one path.

Kirchhoff's voltage law

In any closed circuit all V charges add to zero.

Kirchoff's current law

All the current flowing into a branch point in a circuit has to flow out again.