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Physics
Physics
Problem
Which one of the following expressions gives the impedance
Z
Z
Z
of a series
R
L
C
RLC
R
L
C
circuit? a)
Z
=
R
2
+
X
L
2
+
X
C
2
Z=\sqrt{R^{2}+X_L^{2}+X_C^{2}}
Z
=
R
2
+
X
L
2
+
X
C
2
b)
Z
=
R
2
+
(
X
L
−
X
C
)
2
Z=\sqrt{R^{2}+(X_L-X_C)^{2}}
Z
=
R
2
+
(
X
L
−
X
C
)
2
c)
Z
=
R
+
∣
X
L
−
X
C
∣
Z=R+|X_L-X_C|
Z
=
R
+
∣
X
L
−
X
C
∣
d)
Z
=
R
2
+
(
X
L
+
X
C
)
2
Z=\sqrt{R^{2}+(X_L+X_C)^{2}}
Z
=
R
2
+
(
X
L
+
X
C
)
2
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