TSA Electrical Applications

Base, Collector, and Emitter

What are the pins of a transistor called?

Circuit Breaker

An automatic switch that is similar to a fuse in purpose, but can be used multiple times.

Conductor

A material through which charges can easily flow.

Electron

A negatively charged particle found in atoms that is a carrier of electricity.

Fission

The process used in modern nuclear power plants.

Fuse

A safety device with a thin metal strip that will melt if too much current passes through a circuit.

Galvanometer

A device that uses an electromagnet to detect small amounts of current.

Grounded

Allowing charges to flow directly from the circuit into Earth in the event of a short circuit.

Induction

A method of charging an object by means of the electric field or another object; the objects have no direct contact.

Insulator

A material through which charges cannot easily flow.

Integrated Circuit

A circuit that has been manufactured on a chip (a tiny slice of semiconductor), which can contain thousands of diodes, transistors, and resistors.

Light Emitting Diode

LED stands for this.

Magnet

A device that attracts any material containing iron.

Magnetic Declination

The angle between geographic north to which a compass needle points.

Magnetic Domain

A region in which the magnetic fields of all atoms are lined up in the same direction.

Magnetic Field

The region around a magnet where the magnetic force is exerted.

Magnetic Field Lines

Invisible lines that map out the magnetic field around a magnet.

Magnetic Force

A force produced when magnetic poles interact.

Magnetic Pole

The ends of a magnetic object, where the magnetic force is strongest.

Magnetism

The force of attraction or repulsion of magnetic materials.

Mechanical Energy

The energy an object has due to its movement or change in position.

Neutron

The small uncharged particle that is found in the nucleus of an atom.

NPN

The arrow on the emitter is pointing out on the schematic of this type transistor.

Nucleus

The core at the center of every atom.

Ohm's Law

The law that states that resistance is equal to voltage divided by current.

Parallel Circuit

An electric circuit with multiple paths.

Permanent Magnet

A magnet made of material that keeps its magnetism.

PNP

The arrow on the emitter is pointing in on the schematic of this type transistor.

Power

The rate at which one form of energy is transformed into another: measured in watts.

Proton

A positively charged particle that is part of an atom's nucleus.

Resistance

The measurement of how difficult it is for charges to flow through a material.

Semiconductor

A material that conducts current under certain conditions.

Series Circuit

An electric circuit with a single path.

Short Circuit

A connection that allows current to take an unintended path.

Solenoid

A coil of wire with a current that acts as a bar magnet.

Static Discharge

The loss of static electricity as electric charges transfer from one object to another.

Static Electricity

A buildup of charges on an object.

Step-Down Transformer

A transformer that decreases voltage.

Step-Up Transformer

A transformer that increases voltage.

Temporary Magnet

A magnet made from a material that easily loses its magnetism.

Terminal

A convenient attachment point used to connect a cell of battery to a circuit.

Third Prong

The round prong of a plug that connects any metal pieces in an appliance to safety.

Transformer

A device that increases or decreases voltage.

Transistor

An electronic component used to amplify an electronic signal or to switch current on and off.

Voltage

The difference in electrical potential energy between two places in a circuit.

Voltage Source

A device that creates an electrical potential energy difference in an electric current; for example batteries and generators.

Voltmeter

A device used to measure voltage, or electrical potential energy difference.

Water

What turns the generator in hydroelectric plants.

Zener Diode

A diode that can conduct in reverse bias and is commonly used in voltage regulation.

10

A resistor with the bands brown, black, blue, has a resistance of __MEG ohms.

34K

A resistor with the bands orange, yellow, orange, has a resistance of __ ohms.

5

A resistor with a gold band as the forth one has a tolerance of __%

50

A resistor with the bands green, black, black, has a resistance of __ ohms.

3

How many pins does a transistor have?

8

How many pins are on a 555 Timer Circuit?

R1 + R2

When R1 and R2 are connected in a series, what is the total resistance?

(R1 x R2) / (R1 + R2)

When R1 and R2 are connected in parallel, what is the total resistance?

1 / ((1 / R1) + (1 / R2) + (1 / R3))

When R1, R2, and R3 are connected in parallel, what is the total resistance?

SCR

Circuit component "Q1" could either be a transistor or this.

blue, yellow, black

If a resistor is 64 ohms, what are the colors of its first three bands?

blue, red, yellow

If a resistor is 620k ohms, what are the colors of its first three bands?

blue, red, black

If a resistor is 62 ohms, what are the colors of its first three bands?

Crude Oil

What petroleum is made from.

Coal

The largest primary source of electrical energy in the United States.

Attract

What positive and negative particles do when brought together.

Repel

What two negative particles do when brought together.

746 watts

How much one horsepower is.

Ohms

The unit resistance is measured in.

Watt

The unit power is measured in.

Farad (Microfarad)

The unit capacitance is measured in.