16. If the resistance in parallel with a parallel resonant circuit is reduced, the bandwidth ________.
(a) disappears
(b) becomes sharper
(c) increases
(d) decreases
17. To tune a parallel resonant circuit to a higher frequency, the capacitance should be ________.
(a) increased
(b) decreased
(c) left alone
(d) replaced with inductance
18. In a certain series resonant circuit, VC = 125 V, VL = 125 V, and VR = 40 V. The value of the source voltage is ________.
(a) 125 V
(b) 250 V
(c) 290 V
(d) 40 V
19. A certain series resonant circuit has a bandwidth of 2 kHz. If the existing coil is replaced with one having a higher value of Q, the bandwidth will ________.
(a) increase
(b) remain the same
(c) decrease
(d) be less selective
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