VR&VC are output voltages across the resistor and capacitor respectively. Choose a correct option.
A
As frequency of source increases, VC increases.
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B
As frequency of source increases, VC decreases.
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C
VR is independent of frequency.
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D
VR decreases with an increment in frequency.
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Solution
The correct option is B As frequency of source increases, VC decreases. VR=iR&i=εz=ε√R2+x2c xc=1wc With an increment in ω, xc decreases, so i increases; hence, VR increases. Also ε=√V2R+V2C, so as VR increases, Vcdecreases.