About Electricty
Circuits
Testing Combination Circuits
Circuit Components
Testing Electronic Circuits
100
Amperes
What is "Name the unit used in measuring electric current."
100
Continuity, Voltage source, Current flow
What is "What are the three facts to remember about every circuit?"
100
Test each circuit individually.
What is "The basic rule for checking circuits in an appliance containing several circuits?"
100
10 thousand ohms
What is "A resistor value of 10K ohms gives the resistor what value?"
100
A small colored pin will push out from the circuit breaker case.
What is "How do some small circuit breakers visually display that they have tripped?"
200
Electric current is a stream of negatively charged particles, or electrons.
What is "Define electric current."
200
A unbroken circuit that does not have any breaks in the path provided for the current.
What is "A continuous electric circuit?"
200
Continuity test and Voltage test.
What is "the two simple but basic tests for all appliances?"
200
Silicon and Germanium
What is "What two types of material are used in the creation of diodes?"
200
By performing a continuity test on the fuse.
What is "What is the best method of checking a fuse?"
300
Resistance is the opposition to the flow of electrons. It is measured in ohms by an instrument called the ohmmeter.
What is "resistance and how is it measured? "
300
A circuit must be broken to insert the ammeter in a series with the part whose current is being measured
What is "Why must the circuit be broken to insert an ammeter?"
300
Three components are in parallel when they are all connected together on both sides. They are "shunting" each other or are connected across each other.
What is "Describe the connection of three electrical components which are in parallel with each other"
300
The A.N.D. Gate
What is "Type of IC gate requires both inputs to be high to produce a high output."
300
Electronic circuits are more easily tested from the input side to the output side.
What is "Are electronic circuits best tested from input to output or from output to input?"
400
E=I R= 12 10=120 volts
What is "Calculate the voltage in a circuit with a 12-amp current and a 10-ohm resistance."
400
If voltage and current are known, the power is found by multiplying the voltage and the current.
What is "How can the circuit power be found without the use of an instrument?"
400
If any one of the components is open, the whole circuit is open so the heater will not work since the switch is open but the fan will still turn.
What is "Heater in Figure 24 is plugged into an outlet and the switch is opened, what will happen?"
400
LED display
What is "Type of display produces its own light?"
400
Yes, the transistor should be operating.
What is "If a transistor has a base to emitter voltage of 1.0V DC and a collector-to-emitter voltage of 5.0V DC, should the transistor be on?"
500
The three components of an copper atom ....
What is "29 protons, 29 neutrons, and 29 electrons."
500
Remember this... No matter how complicated a piece of electrical equipment may look, it is nothing but a group of simple circuits tied together. Even if you do find several faulty circuits, you simply fix them one at a time.
What is "one of the most important facts of electrical work."
500
Christmas tree light sets when one lamp burns out, the entire set is out, and you have to replace lamps one by one to find the bad one.
What is "series circuit that is broken or opened at one point."
500
Transistors are the invention that replaced vacuum tubes for all commercial/industrial applications.
What is "The most important electronic invention of the twentieth century?"
500
Diodes and Transistor
What is "Name two solid-state devices?"
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