The Beginning
A charged atom is known as what?
An Ion.
Ohms Law may be expressed as an equation as what?
E= IxR
When a conductor is moved through a magnetic field, an _________is induced in the conductor.
Electromotive Force (EMF)
The measure of a capacitor’s ability to store charge is its:
Capacitance.
What is the purpose of a rectifier?
Convert AC to DC.
A buildup of an electrical charge on the surface of an object is known as:
Static Electricity.
Chemical energy can be converted into electricity; the most ordinary form of this is the:
Battery.
Whenever a voltage or current passes through a series of changes, returns to the starting point, and then again starts the same series of changes, the series is called a:
Cycle
By definition, one _______ is one coulomb of charge stored with one volt across the plates of the capacitor.
Farad.
What are transformers used for?
To step up or step down voltage and current.
The measure of opposition to the lines of flux through a material is known as.
Reluctance.
The _____________________ of the conductor will determine the amount of current that flows under the given voltage.
Resistance
When two waveforms go through their maximum and minimum points at different times, the two wave-forms are said to be ______ with each other.
In-Phase.
The primary aspect of the operation of a coil is its property to oppose any change in current through it. This property is called:
Inductance.
What is meant by impedance of an A.C. Circuit?
Total resistance of the AC circuit.
The addition of the soft iron core does two things for the current carrying coil, what are they?
Increases the number of flux lines and increases their concentration.
(1) Voltage can be measured as the potential difference between the two terminals of a battery.
(2) Electrons move, when a path is available, from a point of excess electrons (higher potential energy) to a point deficient in electrons (lower potential energy).
Regarding the above statements, which is true?
All of the above.
Generators used to produce an alternating current are called:
AC generators and alternators
Doubling the length of a coil, while keeping the same number of turns, ______ the value of inductance.
Halves.
If in an A.C. Circuit, the inductive reactance is equal to capacitive reactance, then the A.C. Circuit is said to be in _______________.
Resonance.
One of the most frequent causes of damage to a solid state component or integrated circuits due to improper handling during installation is called what?
Electrostatic Discharge (ESD)
A photovoltaic cell is a device that converts _______________ energy into electricity.
Light
DC flows constantly in only one direction with a constant polarity, whereas AC current flow changes _____ at regular intervals.
Direction and Intensity
One coulomb of charge is defined as a charge having __________ electrons.
6.28 x 10 to the 18th power
What are the 5 things that make up a practical electrical circuit?
Source, Load, Conductor, Protection device, Switch.