ELECTRONICS ETA STUDY GUIDE 2026/2027 QUESTIONS
AND SOLUTIONS RATED A+
✔✔If a series circuit has two 13 kΩ resistors with a source voltage of 10 V, the wattage
is: - ✔✔3.85 mW
✔✔What does the M+ key on a calculator do? - ✔✔sums the quantity on screen to
memory
✔✔The total current in a series-parallel circuit equals the: - ✔✔sum of the parallel
branch circuit current
✔✔The ammeter setting on a multimeter indicates what type of reading? - ✔✔Current
✔✔In a series circuit, the current is _________. - ✔✔the same in all parts of the circuit
✔✔_______ force produces magnetic flux. - ✔✔Magnetomotive
✔✔Calculate the current in the circuit below:
https://lh6.googleusercontent.com/pJLEK44RE1QIOD0SKYb1O2KsnIGwxNNJUaWp24
wPLWJDQw3QUqh9RpH7PHFA9JWOQb8uSRm6eg=w200 - ✔✔6 Amps
✔✔A component whose value is measured in Ohms is a: - ✔✔resistor
✔✔You should use caution when talking to someone who is operating electrical
equipment because the distraction: - ✔✔could damage the equipment
could ruin an electronic device
both could be injured
all of the above
✔✔A material that can be magnetized easily falls into this category: - ✔✔Ferromagnetic
✔✔It is dangerous to use wooden handle tools around high voltage due to their ability to
absorb moisture. - ✔✔True
✔✔Which metric prefix would be represented by 1 x 10¹²? - ✔✔Tera
✔✔The output of a lead-acid cell is approximately: - ✔✔2.1 V
✔✔If a short occurs in the parallel portion of a series-parallel circuit, how will the total
resistance be affected? - ✔✔It will increase
, ✔✔______ is a term used to describe voltage. - ✔✔Electromotive force
✔✔In a parallel circuit, total resistance: - ✔✔is less than the resistance of any branch
✔✔In a linear electrical circuit, voltage and current are: - ✔✔inversely proportional
✔✔A molecule is the smallest particle of matter than exist by itself. - ✔✔False
✔✔When an individual receives an electrical shock, an immediate symptom can be: -
✔✔cardiac arrest
✔✔Watt's Law states that power is the product of current and voltage. Using algebra,
how could the power be determined if resistance and current are known? - ✔✔current
squared times the resistance
✔✔Which of the following is commonly used to measure electrical energy consumption?
- ✔✔Kilowatt-hours
✔✔What happens as protective eye goggles age? - ✔✔Their resistance to scratching
decreases
✔✔The Wheatstone bridge can be used for precision measurement of: - ✔✔resistance
✔✔A term used to describe opposition to current flow is: - ✔✔resistance
✔✔The main purpose of a safety observer is to: - ✔✔turn off equipment in use and
apply emergency first aid or cardiopulmonary resuscitation if needed
✔✔With 70 volts applied to two 30 kΩ resistors in series connected to three 30 kΩ
resistors in parallel forming a series-parallel circuit, what is the total current? - ✔✔1 mA
✔✔In an electrical circuit where voltage and resistance are known, which form of Ohms
Law is used to find the circuit current? - ✔✔I=E/R
✔✔Ohms Law states that voltage is the product of resistance and current. Using
algebra, how would you determine the resistance? - ✔✔divide the voltage by the current
✔✔If a series circuit has a current of about 15.4mA and a source voltage of 20V, the
total resistance is approximately: - ✔✔1300Ω
✔✔A/an _____ stops the flow of current. - ✔✔insulator
AND SOLUTIONS RATED A+
✔✔If a series circuit has two 13 kΩ resistors with a source voltage of 10 V, the wattage
is: - ✔✔3.85 mW
✔✔What does the M+ key on a calculator do? - ✔✔sums the quantity on screen to
memory
✔✔The total current in a series-parallel circuit equals the: - ✔✔sum of the parallel
branch circuit current
✔✔The ammeter setting on a multimeter indicates what type of reading? - ✔✔Current
✔✔In a series circuit, the current is _________. - ✔✔the same in all parts of the circuit
✔✔_______ force produces magnetic flux. - ✔✔Magnetomotive
✔✔Calculate the current in the circuit below:
https://lh6.googleusercontent.com/pJLEK44RE1QIOD0SKYb1O2KsnIGwxNNJUaWp24
wPLWJDQw3QUqh9RpH7PHFA9JWOQb8uSRm6eg=w200 - ✔✔6 Amps
✔✔A component whose value is measured in Ohms is a: - ✔✔resistor
✔✔You should use caution when talking to someone who is operating electrical
equipment because the distraction: - ✔✔could damage the equipment
could ruin an electronic device
both could be injured
all of the above
✔✔A material that can be magnetized easily falls into this category: - ✔✔Ferromagnetic
✔✔It is dangerous to use wooden handle tools around high voltage due to their ability to
absorb moisture. - ✔✔True
✔✔Which metric prefix would be represented by 1 x 10¹²? - ✔✔Tera
✔✔The output of a lead-acid cell is approximately: - ✔✔2.1 V
✔✔If a short occurs in the parallel portion of a series-parallel circuit, how will the total
resistance be affected? - ✔✔It will increase
, ✔✔______ is a term used to describe voltage. - ✔✔Electromotive force
✔✔In a parallel circuit, total resistance: - ✔✔is less than the resistance of any branch
✔✔In a linear electrical circuit, voltage and current are: - ✔✔inversely proportional
✔✔A molecule is the smallest particle of matter than exist by itself. - ✔✔False
✔✔When an individual receives an electrical shock, an immediate symptom can be: -
✔✔cardiac arrest
✔✔Watt's Law states that power is the product of current and voltage. Using algebra,
how could the power be determined if resistance and current are known? - ✔✔current
squared times the resistance
✔✔Which of the following is commonly used to measure electrical energy consumption?
- ✔✔Kilowatt-hours
✔✔What happens as protective eye goggles age? - ✔✔Their resistance to scratching
decreases
✔✔The Wheatstone bridge can be used for precision measurement of: - ✔✔resistance
✔✔A term used to describe opposition to current flow is: - ✔✔resistance
✔✔The main purpose of a safety observer is to: - ✔✔turn off equipment in use and
apply emergency first aid or cardiopulmonary resuscitation if needed
✔✔With 70 volts applied to two 30 kΩ resistors in series connected to three 30 kΩ
resistors in parallel forming a series-parallel circuit, what is the total current? - ✔✔1 mA
✔✔In an electrical circuit where voltage and resistance are known, which form of Ohms
Law is used to find the circuit current? - ✔✔I=E/R
✔✔Ohms Law states that voltage is the product of resistance and current. Using
algebra, how would you determine the resistance? - ✔✔divide the voltage by the current
✔✔If a series circuit has a current of about 15.4mA and a source voltage of 20V, the
total resistance is approximately: - ✔✔1300Ω
✔✔A/an _____ stops the flow of current. - ✔✔insulator
