31. The formula shows that for a given capacitor, if the voltage changes at a constant rate with respect to time, the current will
(a) increase
(b) decrease
(c) be constant
(d) decrease logarithmically
32. The center frequency of a band-pass filter is always equal to the
(a) bandwidth
(b) –3 dB frequency
(c) bandwidth divided by Q
(d) geometric average of the critical frequencies
33. A zero-level detector is a
(a) comparator with a sine-wave output
(b) comparator with a trip point referenced to zero
(c) peak detector
(d) limiter
34. A mathematical operation that determines the rate of change of a curve is called __________.
(a) differentiation
(b) integration
(c) curve averaging
(d) linear regression
35. A mathematical operation for finding the area under the curve of a graph is called __________.
(a) differentiation
(b) integration
(c) curve averaging
(d) linear regression
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