Mod 2

What is static electricity considered?

A Charge

Conductor

A device designed to transmit electricity, heat, etc.

What is a photon?

A massless particle of pure energy

What are the three basic substances that can be used to produce ionization in a liquid?

Acids, Alkalies, Salts

The first practical battery was invented by ____________________.

Alessandro Volta

What is the positive terminal of a power source called?

Anode

In parallel circuits, the voltage drop across any branch is the same as the _____.

Applied Voltage

A combination circuit is a circuit that contains _____.

Both Series and Parallel components

What is the negative terminal of a power source called?

Cathode

A coulomb is a measure of what?

Charge

An ampere is a measure of what?

Current

In a series circuit, because there is only one path for current to flow, the ____________ is the same at any point in the circuit.

Current

In series circuits, the _____ is the same at any point in the circuit.

Current

When a circuit has only one path, the _____ is the same at any point.

Current

In a parallel circuit, the current through each branch is inversely proportional to the resistance of the branch. Because of this, parallel circuits are sometimes called _____.

Current Dividers

A(n) _____ ground symbol is used to symbolize a ground point made by physically driving an object such as a rod or pipe into the ground.

Earth

The most important factor in the ionization of a gas is electron

Electron Impact

The process of depositing atoms of one type of metal onto another is call _____________.

Electroplating

In a parallel circuit, the voltage across each branch must be _______________.

Equal

On what materials do static charges accumulate?

Insulators

The amount of voltage required to cause ionization of a gas is called __________________.

Ionization potential

What happens to a magnetic when it is heated?

It loses its magnetism

A solar cell produces electricity by the presence of ___________.

Light

What is the greatest example of static electricity?

Lightning

conductor connected to the neutral point of a system that is intended to carry current under normal conditions.

Neutral

A junction point of current paths is often called a _____.

Node

A point that is used as a common connection for parts of a circuit is called a _____ point.

Node

Circuits that have more than one path for current flow are _____ circuits.

Parallel

Most devices such as light receptacles in homes and office buildings are connected in _______________.

Parallel

A material ability to become magnetized is known as _______.

Permeability

The production of voltage by application of pressure is called the ______________ effect.

Piezoelectric

What kind of charge can static electricity be?

Positively or Negatively

A Volt-Ampere is a measure of what?

Power

A Watt is a measure of what?

Power

Which part of an atom has a positive charge?

Proton

What are the three parts of an Atom?

Proton, Neutron, Electron

It is theorized that protons and neutrons are actually made of __________.

Quarks

An Ohm is a measure of what?

Resistance

The speed at which the magnetic field rotates is called ____________________.

Synchonous Speed

The difference between the geographic pole and the magnetic pole of the earth is known as ________?

The angle declination.

The _______________ in a parallel circuit is equal to the sum of the currents through all of the circuit branches.

Total-Current Flow

In a series circuit, the _______________ is the sum of the individual resistances.

Total-Resistance

Electromagnet

a core of magnetic material surrounded by a coil of wire through which an electric current is passed to magnetize the core

What are the three types of AC loads.

capacitive, resistive, inductive

Conductor Fill

is the percent of area inside the conduit taken up by the cable

what is ionization

is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons

semi-conductor

material that can be made to behave as either a conductor or an insulator of electricity or heat.

In order to change from AC to DC we need to ______________.

rectify

Solving combination circuits includes a step in which you _____.

reduce the circuit to a simpler circuit

What does RMS stand for?

root mean square

Three-phase motors operate on the ___________________

rotating magnetic field

Current will flow in a ___________ Circuit.

Complete

The term _____________ refers to the process of separating elements electrically.

Electrolysis

Which part of an atom has no charge?

Neutron

A series circuit has _____ path(s) for current flow.

One

A material ability to resist magnetism is known as _________.

Reluctance

The maximum magnetism a material can achieve is known as __________.

Staturation

What are valence electrons?

electrons in the outer shell

How many valence electrons are contained in materials used for conductors?

1 to 3

How many valence electrons are contained in materials used for insulators?

7-8

A group of cells connected together is known as ______________

Battery

A voltage _____ is used to provide different voltages between certain points in a circuit.

Divider

A solutions of acids, alkalies and metallic salts are referred to as ________________.

Electrolytes

Which part of an atom has a negative charge?

Electron

A ________________ is used to measure the specific gravity of the electrolyte.

Hydrometer

Conduction in a liquid depends on the movement of ______________.

Ions

What happens to a magnet when you place it in an AC magnetic field?

It loses its magnetism

What level of pressure is better for ionization of a gas?

Low pressure

A cell that can not be recharged is known as a _____________.

Primary Cell

A cell that can be recharged is known as a _________________.

Secondary Cell

A circuit that has only one path for current flow is a _____ circuit.

Series

What is the most common type of AC waveform?

Sine wave

The three basic types of three-phase motors?

Squirrel-cage, Synchronous, and Wound Rotor

What is the other name for a wye connection?

Star

What are the two basic parts of the a electric motor?

Stator and rotator

What do you call the process of producing electricity by connecting two unlike metals together and heating them?

Thermocouple

What is electric pressure

Voltage

When cells are connected in series, their _________ is added.

Voltage

In a parallel circuit, the total resistance is _____ value resistor.

less than the lowest

Primary cells are often rated in ________________.

milliampere-hour

In a combination circuit, to identify series and parallel elements, you should _____.

trace the current path(s)

The greeks discovered electricity how many years ago?

2500

In a parallel circuit, the total current flow is equal to the _____ of the currents through all the branches.

Sum