27. Calculate the output voltage if V1 = 33 mV and V2 = 2 mV.
28. In an instrumentation amplifier, the output voltage is based on the ________ times a scale factor.
29. In a millivoltmeter, the diodes and the capacitor are used in ________ parts of the circuit.
30. ________ can be used as a voltage-controlled voltage source.
31. The output voltage of a voltage buffer is ________ with the input voltage.
32. Op-amp circuits are used in ________ voltmeters.
33. Op-amps can be used to form ________ circuit(s).
34. The voltage gain of a voltage buffer is ________ .
35. The roll-off for a first-order high-pass filter is ________.
36. The roll-off for a second-order high-pass filter is ________.
37. In a dc millivoltmeter, the amplifier provides a meter with ________ input impedance and a scale factor dependent on ________ value and accuracy.
38. The output impedance of a voltage buffer is ________.
39. In a current-controlled voltage source using the inverting op-amp circuit, the controlled output current is ________ with the input voltage source.
40. In a current-controlled current source, the controlled current Io depends on ________.
41. A bandpass filter uses ________ circuit.
42. A voltage summing amplifier has ________.
43. When a number of stages are connected in series, the overall gain is the ________ of the individual stage gains.
44. An active circuit is composed of a(n) ________.
45. A filter that passes signals that are above one ideal cutoff frequency and below a second cutoff frequency is called ________.
46. ________ build a multistage connection.
47. A low-pass filter ________.
48. The input to an op-amp can be a(n) ________.
49. A(n) ________ is not a component of a passive filter.
50. ________ in a current-controlled voltage source circuit.