___ is the most commonly used conductor.

Conductors are commonly made from copper, aluminum, and ___.

Semiconductors are made from materials that have ___ valence electrons

___ is the process of charging an object

Derived units of measure have ___ relationships to base units.

The ___ is used to define power.

___ power is the actual power used in an electrical circuit.

A(n) ___ is a material that has very high resistance to the flow of electrons.

The ___ is the negatively charged particle of an atom

A ___ is matter that has no definite volume or definite shape.

Relative resistance is the comparison of the resistance of a given material to the resistance of ___.

A resistor with color bands (as read from left to right) of blue, green, brown, and gold has a value of ___ W at a tolerance of ±5%.

Potentiometers have ___ terminal(s).

The four factors affecting the resistance of a substance are type of material, conductor length, conductor cross-sectional area, and ___.

Relative conductance is the ability of a specific conductor to carry electrons as compared to the ability of a(n) ___ conductor to carry electrons.

The ___ is the unit of energy measurement.

Resistors with no tolerance band have a tolerance of ±___%.

If a range of voltages is required, a ___ can be used in place of a resistor to provide an adjustable output voltage.

A(n) ___ is an electromechanical device that indicates readings by the mechanical motion of a pointer.

____ is the opposition to the flow of electrons.

The electrical polarization of some materials when mechanically strained is called the ___ effect.

A magnetic ___ is invisible and is produced by a current-carrying conductor, a permanent magnet, or the earth.

A ____ is a transducer that conducts current when energized by light.

___ is the resistance to motion that occurs when two surfaces move against each other.

The following substances would all be classified as nonmagnetic except ___.

Thermocouples are useful for measuring ___.

Ionization is the separation of atoms and molecules into particles that have ___ charges.

Artificial magnets are often produced because natural magnets have a small ___.

___ transducers are used in microphones, timing circuits, and television receivers.

Thermionic emission is based on ___ energy.

A(n) ___ chemically stores and releases its electrical potential when a load is placed across its electrodes.

A photovoltaic cell is known as a ___ cell when the light source is sunlight.

With photoresistors, which of the following materials can be used as the photosensitive material?

A(n)___ is a device that normally consists of an LED as the input stage and a photodiode or phototransistor as the output stage of a fiber-optic system.

The___ effect is the absorption or emission of heat at the junctions of two dissimilar metals when electrons flow through the junctions.

A___ is a device that changes resistance in response to a change in temperature and is typically made of semiconductor material.

Most commercially produced electrical power is generated using ___

____ is the property of an electric circuit that opposes magnetic lines of force

A ____ is a machine that converts mechanical energy into electrical energy by means of electromagnetic induction.

A_____ is a mechanical, electronic, or solid-state electrical device that is used to start, stop, or redirect the flow of electrons in an electrical circuit

Power supplied by a circuit is ___ the power consumed by a circuit.

Clamp-on ammeters measure ___ in a circuit.

A ___ switch is mechanically operated

A simple electrical circuit must have a(n) ___, a voltage source, and a load.

A(n) ___ circuit has no electron flow.

A(n) ___ is an example of an overcurrent protection device.

In Ohm’s law, the voltage of a circuit divided by the resistance is equal to the ___.

An electric ___ is a rotating device that converts electrical power into a rotating, mechanical force.

The interrupting rating is related to the amount of ___ that a fuse can safely suspend without arcing over.

___ devices are required in motor circuits by the National Electrical Code^®.

When possible, conductors being tested with a clamp-on ammeter should be ___ surrounding conductors.

Any switch with a ___ that holds its contacts in either the closed or open position has a normal position.

A ___ switch is a single-pole, double-throw (SPDT) switch.

A(n) ___ is a semiconductor device that emits light energy when current flows through it.

A(n) ___ an overcurrent protection device with a fusible link that melts and opens a circuit when an overload condition or short occurs

A(n) ___ is an overload device that responds to electrical loads and operates at a preset value.

A ___ switch is a double-pole, double-throw (DPDT) switch that changes the electrical connections inside the switch from straight to diagonal.

Electrical measurements are most commonly taken using a(n) ___ .

A ___ switch is a switch that has one or more poles that can be connected to several positions

The ___ in a circuit increases based on a factor equal to the circuit voltage squared divided by the resistance, or by the circuit current squared times the resistance.

___ is the flow of electrons through an electrical circuit.

Voltage ___ is the amount of voltage used by a device when current passes through it.

A ground is an unlimited source and acceptor of ___ in a circuit.

To find total resistance in a series circuit, the values of the resistors in the circuit are ___.

In a complex circuit, the source voltage is designated as

 $V=I\cdot R$  

The voltage drop across an 8 Ω. resistor in a circuit that has a total current of 8 A is ______V.

*(HINT: MULTIPLY)

The voltage drop across an 2 Ω. resistor in a circuit that has a total current of 12 A is ______V.

*(HINT: MULTIPLY)

The minimum allowable voltage at the load of a 208 V circuit with a

load resistance of 25 Ω. and load current of 8 A is______V.

The actual voltage of a 208 V circuit with a load resistance of 25 Ω. and load current of 8 A is______V.

The total power in a circuit if four loads are connected in series and each load produces 60 W is___W.

The total power in a circuit if six loads are connected in series and each load produces 20 W is___W.

The voltage drop in a parallel circuit ___ across each load.

Zero current flow may indicate an open between the ___ and a load or switch in the circuit.

In a parallel circuit, each load is called a(n) ___ circuit.

The total resistance of the resistors in a branch circuit is calculated by using the ___ method.

The voltage in a parallel circuit branch that has a resistor of 3.6 kW and a current of 8 mA flowing through it is___ V.

The voltage in a parallel circuit branch that has a resistor of 5.5W and a current of 6A flowing through it is___ V.

If the voltage drop across two loads connected in parallel is 3 V, the total applied voltage in the circuit is____ V.

If the current through four loads connected in parallel in a circuit is 0.522 A, 10.25 A, 7 A, and 2.9 A, the total current is____ A.

If the voltage drop across two loads connected in parallel is 24 V, the total applied voltage in the circuit is____ V.

If the current through four loads connected in parallel in a circuit is 0.221 A, 16.73 A, 3.3 A, and 13.7 A, the total current is ___ A.

If the current in each branch in a parallel circuit is 0.3 A and 0.07 A, the total current is ___ A.

*Hint: ADD

The total current flow and the current flow through each branch of a circuit that has a total voltage of 15 V connected in parallel with a 3.5 kΩ resistor and a 4.4 kΩ resistor is___ A.

The total resistance in a circuit containing resistors of 8 Ω and 25 Ω connected in parallel is___ Ω.

The total resistance in a circuit containing resistors of 3 Ω and 5 Ω connected in parallel is___ Ω.

The total resistance in a circuit containing resistors of 10 Ω, 15 Ω and 35 Ω connected in parallel is___ Ω.

The total resistance in a circuit containing resistors of 2 Ω, 3 Ω and 5 Ω connected in parallel is___ Ω.

The total resistance in a parallel circuit that has a total current of 5.5 mA and a total voltage of 12 V is___ kΩ.

If six loads are connected in parallel and the loads produce 60 W, 75 W, 100 W, 150 W, 60 W, and 40 W, the total circuit power is___ W.

*(Hint. ADD all the numbers up)

The total current in a parallel circuit that has 208 V applied to it and produces 1500 W of power is___ A.

A ___ is a parallel circuit that divides the current proportionally between the branches.

Power in a combination circuit is produced when current flows through a(n) ___.

Total power in a series/parallel circuit is calculated by ___ the power produced by each resistance.

A ___ is typically connected in series.

A ___ is typically connected in parallel.

Frequently, the only known values in a series/parallel circuit are the values of the ___ and the source voltage.

The total amount of current supplied by a 550 W, 208 V combination circuit is ___ A.