NCERT · Class 12 · Physics · Alternating CurrentFor a direct current (DC), the capacitive reactance ($XC$) is:
Step-by-Step Solution
Capacitive reactance is given by $X_C = \frac{1}{2\pi f C}$. For direct current (DC), frequency $f = 0$, so $X_C = \frac{1}{0} = \infty$ (infinite).
Detailed Options Breakdown
Option : Zero
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Alternating Current.
Option 1: Infinite (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: Finite non-zero
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Alternating Current.
Option 3: Depends on circuit voltage
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Alternating Current.
💡 Study Guide: This question tests core syllabus concepts from Alternating Current. For formulas, key summaries, and mock exam reference guides, read the full Alternating Current Revision Notes.