AT&T TKT II Study Guide updated for the
2026/2027 syllabus
Section 1: Basic Electricity (Questions 1-35)
1. Volt is a measure of:
ANSWER ✓ Electromotive Force, or Electrical Potential .
2. What is the equation to solve for power (P)?
ANSWER ✓ P = V x I (Power = Volts x Amps) .
3. What is Ohm's Law equation?
ANSWER ✓ V = I x R (Voltage = Current x Resistance) .
4. What is the base unit of electrical charge?
ANSWER ✓ Coulomb .
5. The flow of electric charge that regularly reverses in polarity is said to be:
ANSWER ✓ Alternating Current (AC) .
6. _________ is the one-directional flow of an electric charge.
ANSWER ✓ Direct Current (DC) .
7. Solve for Voltage: If the current is set to 2A, with a resistance of 15 Ohms, what
is the Voltage?
ANSWER ✓ 30V .
8. If a series circuit has a voltage of 20V and two resistors (4 Ohms and 1 Ohm),
what is the current?
ANSWER ✓ 4 Amps .
9. If voltage is 50V and current is 25 Amps, what is the resistor value?
ANSWER ✓ 2 Ohms .
10. Do electrons and protons attract or repel each other?
ANSWER ✓ Attract (opposite charges attract) .
, 11. An electron is a particle with a ______ charge.
ANSWER ✓ Negative .
12. As the resistance of a material increases, its conductance should:
ANSWER ✓ Decrease .
13. In a parallel circuit, Voltage (V) is the same for each branch.
ANSWER ✓ True .
14. A _________ converts AC to DC.
ANSWER ✓ Rectifier .
15. In an open circuit, the current is said to have a total of:
ANSWER ✓ 0 Amps .
16. A short circuit can be described as:
ANSWER ✓ A fault causing unintended high current flow .
17. Earth ground has a total potential of:
ANSWER ✓ 0 Volts .
18. What frequency does the North American grid system use for AC?
ANSWER ✓ 60 Hz .
19. Rubber is a good conductor of electricity.
ANSWER ✓ False (Rubber is an insulator) .
20. _________ moving freely inside an atom is what makes a material a conductor.
ANSWER ✓ Electrons .
21. Convert 6500 Ohms to Kilo-ohms (kΩ).
ANSWER ✓ 6.5 kΩ .
22. Convert 33 milliAmps to Amps.
ANSWER ✓ 0.033 Amps .
23. In an AC circuit, if the power factor = 0.5, the True Power is 1/2 the _________
power.
ANSWER ✓ Apparent .
24. When the frequency applied to a capacitor increases, the capacitive reactance:
ANSWER ✓ Decreases .
2026/2027 syllabus
Section 1: Basic Electricity (Questions 1-35)
1. Volt is a measure of:
ANSWER ✓ Electromotive Force, or Electrical Potential .
2. What is the equation to solve for power (P)?
ANSWER ✓ P = V x I (Power = Volts x Amps) .
3. What is Ohm's Law equation?
ANSWER ✓ V = I x R (Voltage = Current x Resistance) .
4. What is the base unit of electrical charge?
ANSWER ✓ Coulomb .
5. The flow of electric charge that regularly reverses in polarity is said to be:
ANSWER ✓ Alternating Current (AC) .
6. _________ is the one-directional flow of an electric charge.
ANSWER ✓ Direct Current (DC) .
7. Solve for Voltage: If the current is set to 2A, with a resistance of 15 Ohms, what
is the Voltage?
ANSWER ✓ 30V .
8. If a series circuit has a voltage of 20V and two resistors (4 Ohms and 1 Ohm),
what is the current?
ANSWER ✓ 4 Amps .
9. If voltage is 50V and current is 25 Amps, what is the resistor value?
ANSWER ✓ 2 Ohms .
10. Do electrons and protons attract or repel each other?
ANSWER ✓ Attract (opposite charges attract) .
, 11. An electron is a particle with a ______ charge.
ANSWER ✓ Negative .
12. As the resistance of a material increases, its conductance should:
ANSWER ✓ Decrease .
13. In a parallel circuit, Voltage (V) is the same for each branch.
ANSWER ✓ True .
14. A _________ converts AC to DC.
ANSWER ✓ Rectifier .
15. In an open circuit, the current is said to have a total of:
ANSWER ✓ 0 Amps .
16. A short circuit can be described as:
ANSWER ✓ A fault causing unintended high current flow .
17. Earth ground has a total potential of:
ANSWER ✓ 0 Volts .
18. What frequency does the North American grid system use for AC?
ANSWER ✓ 60 Hz .
19. Rubber is a good conductor of electricity.
ANSWER ✓ False (Rubber is an insulator) .
20. _________ moving freely inside an atom is what makes a material a conductor.
ANSWER ✓ Electrons .
21. Convert 6500 Ohms to Kilo-ohms (kΩ).
ANSWER ✓ 6.5 kΩ .
22. Convert 33 milliAmps to Amps.
ANSWER ✓ 0.033 Amps .
23. In an AC circuit, if the power factor = 0.5, the True Power is 1/2 the _________
power.
ANSWER ✓ Apparent .
24. When the frequency applied to a capacitor increases, the capacitive reactance:
ANSWER ✓ Decreases .
