[B].
[C].
[D].
Answer: Option B
Explanation:
It has R and L in one branch and a variable capacitance in second branch.
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
[B].
[C].
[D].
Answer: Option C
Explanation:
As R increases, Q decreases, bandwidth = . Therefore, bandwidth increases. Hence lower half power frequency will be less than ωr.
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
[B].
[C].
[D].
Answer: Option C
Explanation:
A B C D + A B C D = A B D(C + C) = A B D .
[B].
[C].
[D].
Answer: Option C
Explanation:
Total L = 6 x 9 = 54 H.
Energy = x 54 x 22 = 108 J.
[B].
[C].
[D].
Answer: Option B
Explanation:
I4 = I1 + I2 + I3
or I4 = 5∠90° + 5∠0 + 5∠180° = 5∠90°.