Difficulty: Easy
Correct Answer: Correct
Explanation:
Introduction / Context:
Knowing how total capacitance compares to individual branch values helps validate designs quickly. In parallel, capacitances add directly, so the total must exceed each individual branch value.
Given Data / Assumptions:
Concept / Approach:
Parallel rule: CT = C1 + C2 + … + Cn. Since each Ci ≥ 0, CT ≥ any Ci, with strict inequality if at least one additional capacitor is present besides C4.
Step-by-Step Solution:
Verification / Alternative check:
Example: C4 = 10 µF in parallel with 2.2 µF → CT = 12.2 µF > 10 µF.
Why Other Options Are Wrong:
Common Pitfalls:
Confusing series vs parallel behavior; in series, the total is less than the smallest element, which is the opposite trend.
Final Answer:
Correct
Discussion & Comments