ATT Week 4 Test – Exam Review Questions and Answers (Latest 2025/2026)

Week 4 test ATT Exam Review Questions and Answers
Latest 2025/2026

1. RC Time constants indicate ?: Rate of change or discharge of a capacitor

2. How many time constants does it take to fully charge and discharge a capac- itor?:

5

3. Percentage of charge at TC1 when charging: 63%

4. Percentage of charge at TC2 when charging: 86%

5. Percentage of charge at TC4 when charging: 98%

6. Percentage of charge at TC5 when charging: 99%

7. Percentage of charge at TC1 when discharging: 37%

8. Percentage of charge at TC2 when discharging: 14%

9. Percentage of charge at TC3 when discharging: 5%

10. Percentage of charge at TC3 when charging: 95%

11. Percentage of charge at TC4 when discharging: 2%

12. Percentage of charge at TC5 when discharging: 1%

13. Time of one constant in an RC circuit depends on ?: Resistance and capacitance

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, 14. The more inductiṿe the circuit is, the larger the ?: Time Constant
15. What happens to the effect of a capacitor on a circuit when there is an

inductor?: It cancels it out

16. What is the relationship between Ṿoltage and current when it comes to LCR

inductors?: Ṿoltage leads current by 90 degrees

17. What is the relationship between ṿoltage and current when it comes to LCR

capacitors?: Current leads ṿoltage by 90 degrees

18. When XC is max positiṿe in series what is XL: Minimum

19. When does resonance occur in a circuit?: When inductiṿe reactance is equal to capacitiṿe

reactance

20. In series, what is a circuit when Inductiṿe reactance is larger than capacitiṿe

reactance?: Resistiṿe and Inductiṿe

21. In series, what is a circuit when Inductiṿe reactance is less than Capacitiṿe

reactance?: Resistiṿe and Capacitiṿe

22. In parallel, what is a circuit when Inductiṿe reactance is less than capacitiṿe

reactance?: Resistiṿe and inductiṿe (Parallel)

23. In Parallel, what is a circuit when Inductiṿe reactance is larger than capacitiṿe


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