13 (a) Phasor diagram of V and I (b) Graphs of v and i versus w t for a series LCR
circuit where XC > XL Rationalised 2023-24
189
Alternating Current
rope at regular intervals and the frequency of the pulls is almost the
same as the frequency of swinging, the amplitude of the swinging will be
large (Chapter 13, Class XI) For an RLC circuit driven with voltage of amplitude vm and frequency
w, we found that the current amplitude is given by
2
2
(
)
m
m
m
C
L
v
v
i
Z
R
X
X
=
=
+
−
with Xc = 1/wC and XL = w L