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GUJCET · Physics · Alternating Current
If the capacitance if pure capacitor in a DC circuit 1F, then what will be its capacitive reactance ?
- A Zero
- B \(1 \Omega\)
- C Infinite
- D -2
Answer & Solution
Correct Answer
(C) Infinite
Step-by-step Solution
Detailed explanation
(C) Infinite
for DC circuit \(v=0\)
\(
\begin{aligned}
\therefore \quad \omega & =2 \pi v=0 \\
\mathrm{X}_{\mathrm{C}} & =\frac{1}{\omega \mathrm{C}}=\frac{1}{0 \times 1} \\
\mathrm{X}_{\mathrm{C}} & =\frac{1}{0} \\
\mathrm{X}_{\mathrm{C}} & =\infty=\text { Infinite }
\end{aligned}
\)
for DC circuit \(v=0\)
\(
\begin{aligned}
\therefore \quad \omega & =2 \pi v=0 \\
\mathrm{X}_{\mathrm{C}} & =\frac{1}{\omega \mathrm{C}}=\frac{1}{0 \times 1} \\
\mathrm{X}_{\mathrm{C}} & =\frac{1}{0} \\
\mathrm{X}_{\mathrm{C}} & =\infty=\text { Infinite }
\end{aligned}
\)
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