TS EAMCET 11-Sep-2020 Shift 1 Solved Paper

The AC circuit is shown in the following figure,Frequency of AC source is given as
f=‌

1

2π√LC

Clearly, it is resonant frequency.
Hence, XL=XC
In this case, voltages developed across L and C are equal in magnitude but opposite in pollaries.
Z=R
∴‌‌I=‌

V

Z

=‌

V

R

Hence, the current through R depends only on the value of R and not L and C.