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698 ⏐⏐⏐ SERIES AND PARALLEL ac CIRCUITS
+
e = 6 sin(314t + 60°)
–
E = 10 V(rms)
f = 1 kHz
+
–
E = 12 V(rms)
f = 40 kHz
R
+
–
+
E = 120 V ∠ 20°
–
Z T
R = 3 k�
+ v – R
FIG. 15.123
Problem 11.
29.94 mA(rms)
I
L
FIG. 15.125
Problem 13.
X L = 2 k�
+ v – L
Scope = 8.27 V( p-p)
+
R
–
10 k�
FIG. 15.126
Problem 14.
2 k�
+ V –
1
(a)
X C = 1 k�
+
v
–
C
+
Scope = 21.28 V( p-p)
–
C
6 k�
+ V –
2
i
a c
11. Repeat Problem 10 for the circuit of Fig. 15.123.
12. Using the oscilloscope reading of Fig. 15.124, determine
the resistance R.
+ R
+
E = 20 V(rms) 80 � Scope = 45.27 V( p-p)
–
–
FIG. 15.124
Problem 12.
*13. Using the DMM current reading and the oscilloscope
measurement of Fig. 15.125:
a. Determine the inductance L.
b. Find the resistance R.
*14. Using the oscilloscope reading of Fig. 15.126, determine
the capacitance C.
+
E = 60 V ∠ 5°
–
FIG. 15.127
Problem 15.
SECTION 15.4 Voltage Divider Rule
15. Calculate the voltages V1 and V2 for the circuit of Fig.
15.127 in phasor form using the voltage divider rule.
6.8 �
(b)
40 �
+ V –
1
9 �
+ –
V2