1.
Suppose a coil and capacitor are connected in series. The inductive reactance is 250 Ω, andthe capacitive reactance is −300 Ω. What is the complex impedance?
2.
Suppose a coil of 25.0 µH and capacitor of 100 pF are connected in series. The frequency is5.00 MHz. What is the complex impedance?
3.
When R = 0 in a series RLC circuit, but the net reactance is not zero, the impedance vector
A.
Always points straight up.
B.
Always points straight down.
C.
Always points straight toward the right.
D.
None of the above is correct.
4.
Suppose a resistor of 150 Ω, a coil with a reactance of 100 Ω, and a capacitor with areactance of −200 Ω are connected in series. What is the complex impedance?
5.
Suppose a resistor of 330 Ω, a coil of 1.00 µH, and a capacitor of 200 pF are in series. Whatis the complex impedance at 10.0 MHz?
6.
Suppose a coil has an inductance of 3.00 µH and a resistance of 10.0 Ω in its winding. Acapacitor of 100 pF is in series with this coil. What is the complex impedance at 10.0 MHz?
7.
Suppose a coil has a reactance of 4.00 Ω. What is the complex admittance, assuming there is nothing else is in the circuit?
8.
What will happen to the susceptance of a capacitor if the frequency is doubled and all otherfactors remain constant?
A.
It will decrease to half its former value.
B.
C.
D.
9.
Suppose a coil and capacitor are in parallel, with jBL =−j0.05 and jBC = j0.03. What is thecomplex admittance, assuming that nothing is in series or parallel with these components?
10.
Imagine a coil, a resistor, and a capacitor connected in parallel. The resistance is 1.0 Ω, thecapacitive susceptance is 1.0 S, and the inductive susceptance is −1.0 S. Then, suddenly, thefrequency is cut to half its former value. What is the complex admittance at the new frequency?
11.
Suppose a coil of 3.50 µH and a capacitor of 47.0 pF are in parallel. The frequency is 9.55MHz. There is nothing else in series or parallel with these components. What is the complexadmittance?
12.
A vector pointing southeast in the GB plane would indicate
A.
Pure conductance with zero susceptance.
B.
Conductance and inductive susceptance.
C.
Conductance and capacitive susceptance.
D.
Pure susceptance with zero conductance.
13.
Suppose a resistor with conductance 0.0044 S, a capacitor with susceptance 0.035 S, and acoil with susceptance −0.011 S are all connected in parallel. What is the complex admittance?
14.
Suppose a resistor of 100 Ω, a coil of 4.50 µH, and a capacitor of 220 pF are in parallel.What is the complex admittance at a frequency of 6.50 MHz?
15.
Suppose the complex admittance of a circuit is 0.02 + j0.20. What is the complex impedance,assuming the frequency does not change?
16.
Suppose a resistor of 51.0 Ω, an inductor of 22.0 µH, and a capacitor of 150 pF are inparallel. The frequency is 1.00 MHz. What is the complex impedance?
17.
Suppose a series circuit has 99.0 Ω of resistance and 88.0 Ω of inductive reactance. An ac rms voltage of 117 V is applied to this series network. What is the current?
18.
What is the voltage across the reactance in the preceding example?
19.
Suppose a parallel circuit has 10 Ω of resistance and 15 Ω of reactance. An ac rms voltage of20 V is applied across it. What is the total current?
20.
What is the current through the resistance in the preceding example?