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A sereis R-C circuit is connected to AC ...

A sereis 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?

A

`I_(R)^(A)gt I_(R)^(B)`

B

`I_(R)^(A)lt I_(R)^(B)`

C

`V_(C )^(A)gt V_(C )^(B)`

D

`V_(C )^(A)lt V_(C )^(B)`

Text Solution

Verified by Experts

The correct Answer is:
B, C
`X_(C )` decreases therefore impendence decreassand current increases. `I_(B) gt I_(A)`. As increases the voltage across 'R' increases therefore `V_(C )` decreases.
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