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Question

A series RC 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?

A
IAR>IBR
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B
IAR<IBR
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C
VAc>VBc
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D
VAC<VCR
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Solution

The correct options are
B IAR<IBR
C VAc>VBc
I=VZ
V2=(VR)2+(V2C)
=(IR2)+(IωC2)
Z2=R2+(1ωC2)

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