OP-AMP Circuits

How many op-amps are required to implement this equationop-amps? A. 2 B. 3 C. 4D. 1

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 resistorB. 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 sourceC. 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 oneB. 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 gainC. 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