USCG Exam PracticeDC circuits and electronic principles
A shipboard distribution panel supplies four identical 12 Ω loads in parallel from a 120 V bus. A fifth identical 12 Ω load is then connected to the same bus. What is the total current drawn from the source after the fifth load is added?
- A. 10 A
- B. 40 A
- ✓ 50 ACorrect
- D. 60 A
Why C is correct
NEETS Mod. 1 §3-3: each branch draws I = E/R = 120/12 = 10 A. With five identical parallel branches, total current It = 5 × 10 = 50 A. Adding parallel branches increases total current; the voltage across each branch remains 120 V.
Cited:NEETS Mod. 1 §3-3