All of Electronics

What is an electric circuit

A connection of wires and components performing a useful function

What kind of property is charge

Physical property of matter

What is charge measured in

Coulombs

What is a field

A collection of invisible lines of force that fill up all of space

When is an electrical field generated around a particle

Always

What is generated around a charged particle

Electric field

When is a magnetic field is genarated

Around an electrical charge in motion

What fields do a charged particle in motion have

Electric and magnetic

What is current the movement of

Charge

What is current

The rate of flow of electrical charge

What is current measured in

Amps

What is current measured with

Ammeter

What is direct current

Where current does not change

What is alternating current

The current change with time

What is the voltage between two points

The work need to move 1 coulomb of charge between them

What is voltage

Energy transferred per unit charge

What is another name for voltage

Potential difference

What is a resistor

A component that resists current flow

What is resistance

The resistance to current flow

What is resistance measured in

Ohms

What is conductance

The inverse of resistance, it eases current flow

What is the unit for conductance

Siemens

What is a conductor

A material that has a low resistivity

What is an example of a conductor

Copper/Gold/Aluminum

What is an insulator

An object with high resistivity

What is an example of a insulator

Glass/Dry wood

What is a superconductor

They have a resistivity of zero

What special properties do superconductors have, and what are they used for

Unique magnetic properties that are useful for medical imagining and scientific instruments

What is electrical power

The rate at which a circuit transfers electrical energy

What is power measured in

Watts

What happens to voltage in parallels

It is the same across the branches

What happens to voltage in series

It is split across the components

What happens to current in series

It is the same though all the components

What happens to current in parallels

It is split across the branches

What is ohm’s Law

The current flowing though a conducting material is proportional to the voltage across the material

What is Kirchoff’s Current Law

The net current entering a node is zero or the sum of the currents entering a node is the sum of the current leaving the node

What is a loop

A closed path where nodes are not passed through more than once

What is Kirchoff’s Voltage Law

The algebraic sum of the voltages for any closed path equals zero

What is a voltage divider

A circuit made up of 2 or more series resistors whose output voltage is a fixed fraction of the input voltage

What is current division

The current flow into a parallel combination of 2 resistors dividers across each resistor

What is a Thevenin equivalent circuit made up off

An independent voltage source and a resistor in series

How do you find Vth

Kill all the sources and open the circuit

What is a Norton equivalent circuit

A current source and a resistor in parallel

What does Super Position Principle state

The total response is is the sum of the responses to each of the independent sources acting individually

How do you carry out the principle of superposition

By looking at the individual effects of each source on the component and adding them up, this is done by killing at but one source

What is a dependent source

A source that depends on another value