OP-AMP Circuits

A. 2
B. 3
C. 4
D. 1

A. Ri=∞ ,A=∞ ,R0=0
B. Ri=0 ,A=∞ ,R0=0
C. Ri=∞ ,A=∞ ,R0=∞
D. Ri=0 ,A=∞ ,R0=∞

A. Not need an input resistor
B. Be virtual ground
C. Have high reverse current
D. Not invert the signal

A. Current controlled Current source
B. Current controlled voltage source
C. Voltage controlled voltage source
D. voltage controlled current source

A. Less than one
B. Greater than one
C. Of zero
D. Equal to one

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

A. 1.273kHz
B. 12.73kHz
C. 127.3 kHz
D. 127.3 Hz