ELECTRONICS ETA CERTIFICATION FINAL EXAM
2026/2027 QUESTIONS AND SOLUTIONS RATED A+
✔✔In a series circuit, the current is _________________. - ✔✔the same in all parts of
the circuit
✔✔Total power in a series circuit equals the __________________. - ✔✔sum of the
power dissipated by each resistor
✔✔The sum of voltage drops in a series circuit: - ✔✔equals the applied voltage
✔✔A decrease in the current of a series circuit can be caused by a: - ✔✔resistance
increase
✔✔When the resistance of a series circuit decreases, ________________________. -
✔✔total current increases
✔✔If a series circuit has a current of about 15.4 mA and a source voltage of 20 V, the
total resistance is approximately ____________________. - ✔✔1300 ohms
✔✔If a series circuit has two 13 kΩ resistors with a source voltage of 10 V, the wattage
is _________. - ✔✔3.85 mW
✔✔Kirchoff's voltage law (KVL) states that the total voltage around a closed loop must
be zero. (3) - ✔✔True (3)
✔✔When resistors are added in parallel to a parallel circuit, total current
________________. - ✔✔Increases
✔✔In a parallel circuit, total resistance _______________. - ✔✔is less than the
resistance of any branch
✔✔In a simple parallel circuit, the voltage across each branch is ________________. -
✔✔equal to the source voltage
✔✔With three 4.5 kΩ resistors and one 1.5 kΩ
resistor in parallel, the total resistance is __________. - ✔✔750 ohms
✔✔Kirchhoff's first law is also know as the principle of conservation of electric charge. It
states that at any point, the sum of currents flowing towards that point is equal to the
sum of currents flowing away from that point. - ✔✔True (4)
, ✔✔The total current in a series-parallel circuit equals the _____________. - ✔✔applied
voltage divided by the total resistance
✔✔When two 10 kΩ parallel resistors are connected in series with a third 10 kΩ
resistor, total resistance (RT) is ____________. - ✔✔15 kiloohms
✔✔With 70 volts applied to two 30 kΩ
resistors in series connected to three30 kΩ
resistors in parallel forming a series-parallel circuit, what is the total current? - ✔✔1 mA
✔✔If a short occurs in the parallel portion of a series-parallel circuit, how will the total
resistance be affected? - ✔✔It will decrease
✔✔Thevenin's Theorem states that it is possible to simplify any circuit containing any
amount of voltage sources, current sources or resistances, no matter how complex, to
an equivalent circuit with just a single voltage source and series resistance connected to
a load. (5) - ✔✔True (5)
✔✔Battery cells are connected in parallel to ________________. - ✔✔increase current
capacity
✔✔Battery cells are connected in series to _____________________. - ✔✔increase
voltage output
✔✔The output of a lead-acid cell is approximately: - ✔✔2.1 V
✔✔Given a battery rated at 200 ampere-hours, how many hours will the battery be able
to provide 10 amperes? - ✔✔20
✔✔ The "triboelectric effect" causes what kind of electricity? - ✔✔Static
✔✔The law of static electrical charges states: - ✔✔like charges repel
✔✔Minute particles that make up all possible elements and still retain the unique
chemical characteristics of the element are called _____________. - ✔✔Atoms
✔✔A molecule is the smallest particle of matter that can exist by itself. (1) - ✔✔True (1)
✔✔A basic atom must contain what two types of subatomic particles? - ✔✔Electron and
proton
✔✔An electron has _______________. - ✔✔a Negative charge
2026/2027 QUESTIONS AND SOLUTIONS RATED A+
✔✔In a series circuit, the current is _________________. - ✔✔the same in all parts of
the circuit
✔✔Total power in a series circuit equals the __________________. - ✔✔sum of the
power dissipated by each resistor
✔✔The sum of voltage drops in a series circuit: - ✔✔equals the applied voltage
✔✔A decrease in the current of a series circuit can be caused by a: - ✔✔resistance
increase
✔✔When the resistance of a series circuit decreases, ________________________. -
✔✔total current increases
✔✔If a series circuit has a current of about 15.4 mA and a source voltage of 20 V, the
total resistance is approximately ____________________. - ✔✔1300 ohms
✔✔If a series circuit has two 13 kΩ resistors with a source voltage of 10 V, the wattage
is _________. - ✔✔3.85 mW
✔✔Kirchoff's voltage law (KVL) states that the total voltage around a closed loop must
be zero. (3) - ✔✔True (3)
✔✔When resistors are added in parallel to a parallel circuit, total current
________________. - ✔✔Increases
✔✔In a parallel circuit, total resistance _______________. - ✔✔is less than the
resistance of any branch
✔✔In a simple parallel circuit, the voltage across each branch is ________________. -
✔✔equal to the source voltage
✔✔With three 4.5 kΩ resistors and one 1.5 kΩ
resistor in parallel, the total resistance is __________. - ✔✔750 ohms
✔✔Kirchhoff's first law is also know as the principle of conservation of electric charge. It
states that at any point, the sum of currents flowing towards that point is equal to the
sum of currents flowing away from that point. - ✔✔True (4)
, ✔✔The total current in a series-parallel circuit equals the _____________. - ✔✔applied
voltage divided by the total resistance
✔✔When two 10 kΩ parallel resistors are connected in series with a third 10 kΩ
resistor, total resistance (RT) is ____________. - ✔✔15 kiloohms
✔✔With 70 volts applied to two 30 kΩ
resistors in series connected to three30 kΩ
resistors in parallel forming a series-parallel circuit, what is the total current? - ✔✔1 mA
✔✔If a short occurs in the parallel portion of a series-parallel circuit, how will the total
resistance be affected? - ✔✔It will decrease
✔✔Thevenin's Theorem states that it is possible to simplify any circuit containing any
amount of voltage sources, current sources or resistances, no matter how complex, to
an equivalent circuit with just a single voltage source and series resistance connected to
a load. (5) - ✔✔True (5)
✔✔Battery cells are connected in parallel to ________________. - ✔✔increase current
capacity
✔✔Battery cells are connected in series to _____________________. - ✔✔increase
voltage output
✔✔The output of a lead-acid cell is approximately: - ✔✔2.1 V
✔✔Given a battery rated at 200 ampere-hours, how many hours will the battery be able
to provide 10 amperes? - ✔✔20
✔✔ The "triboelectric effect" causes what kind of electricity? - ✔✔Static
✔✔The law of static electrical charges states: - ✔✔like charges repel
✔✔Minute particles that make up all possible elements and still retain the unique
chemical characteristics of the element are called _____________. - ✔✔Atoms
✔✔A molecule is the smallest particle of matter that can exist by itself. (1) - ✔✔True (1)
✔✔A basic atom must contain what two types of subatomic particles? - ✔✔Electron and
proton
✔✔An electron has _______________. - ✔✔a Negative charge
