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AP EAMCET · PHYSICS · Current Electricity

Regarding the given circuit, the correct statement is:

  1. A \(\left(\mathrm{V}_{\mathrm{a}}-\mathrm{V}_{\mathrm{b}}\right)\) is increasing with time
  2. B \(\left(V_{\mathrm{a}}-\mathrm{V}_{\mathrm{b}}\right)\) is decreasing with time
  3. C \(\left(\mathrm{V}_{\mathrm{a}}-\mathrm{V}_{\mathrm{b}}\right)=10 \mathrm{~V}\)
  4. D \(\left(\mathrm{V}_{\mathrm{a}}-\mathrm{V}_{\mathrm{b}}\right)=\) zero
Verified Solution

Answer & Solution

Correct Answer

(D) \(\left(\mathrm{V}_{\mathrm{a}}-\mathrm{V}_{\mathrm{b}}\right)=\) zero

Step-by-step Solution

Detailed explanation

\(\mathrm{Q}_{\mathrm{c}}=5\left(1-\mathrm{e}^{-\frac{\mathrm{t}}{2}}\right)\) \(I_L=5\left(1-e^{-\frac{t}{2}}\right)\) \(\mathrm{V}_{\mathrm{a}}-\mathrm{V}_{\mathrm{b}}=2 \mathrm{I}_{\mathrm{L}}-\frac{\mathrm{Q}_{\mathrm{c}}}{0.5}\)…