A fuse is connected_______________?
(A) in series with circuit
(B) in parallel with circuit
(C) either in series or in parallel with circuit
(D) none of the above
Series capacitors are used to_________________?
(A) compensate for line inductive reactance
(B) compensate for line capacitive reactance
(C) improve line voltage
(D) none of the above
The ideal OP-AMP has the following characteristics
(A) Ri=∞ ,A=∞ ,R0=0
(B) Ri=0 ,A=∞ ,R0=0
(C) Ri=∞ ,A=∞ ,R0=∞
(D) Ri=0 ,A=∞ ,R0=∞
If ground is applied to the (+) terminal of an inverting op-amp, the (–) terminal will_____________?
(A) Not need an input resistor
(B) Be virtual ground
(C) Have high reverse current
(D) Not invert the signal
An ideal OP-AMP is an ideal______________?
(A) Current controlled Current source
(B) Current controlled voltage source
(C) Voltage controlled voltage source
(D) voltage controlled current source
A non inverting closed loop op amp circuit generally has a gain factor______________?
(A) Less than one
(B) Greater than one
(C) Of zero
(D) Equal to one
The closed-loop voltage gain of an inverting amplifier equal to______________?
(A) The ratio of the input resistance to feedback resistance
(B) The open-loop voltage gain
(C) The feedback resistance divided by the input resistance
(D) The input resistance
Calculate the cutoff frequency of a first-order low-pass filter for R1 = 2.5kΩ and C1 = 0.05μF___________?
(A) 1.273kHz
(B) 12.73kHz
(C) 127.3 kHz
(D) 127.3 Hz