A series R-C circuit is connected to AC voltage source. Consider two cases ; (A) when C is without a dielectric medium and (B) when C is filled with dielectric of constant 4. The current IR through the resistor and voltage VC across the capacitor are compared in the two cases. Which of the following is/are true ?

Engineering

Physics

AC Circuit Analysis

Question

A series R-C circuit is connected to AC voltage source. Consider two cases ; (A) when C is without a dielectric medium and (B) when C is filled with dielectric of constant 4. The current I_R through the resistor and voltage V_C across the capacitor are compared in the two cases. Which of the following is/are true ?

$I_{R}^{A} < I_{R}^{B}$

$I_{R}^{A} > I_{R}^{B}$

$V_{C}^{A} < V_{C}^{B}$

$V_{C}^{A} > V_{C}^{B}$

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$z_{1} > z_{2} ∴ I_{R}^{A} < I_{R}^{B}$

$V_{C}^{A} = \frac{I_{K}^{A}}{ωC}; V_{C}^{B} = \frac{I_{K}^{B}}{ωC}; V_{C}^{B} < V_{C}^{A}$