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.Management Sciences
Category: OP-AMP Circuits
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
A differential amplifier is invariably used in the i/p stage of all op-amps. This is done basically to provide the op-amps with a very high______________?
A. CMMR
B. Bandwidth
C. Slew rate
D. Open-loop gain
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
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
Differential amplifiers are used in______________?
A. Instrumentation amplifiers
B. Voltage followers
C. Voltage regulators
D. Buffers
The approximate input impedance of the opamp circuit which has Ri=10k, Rf=100k, RL=10k?
A. ∞
B. 120k
C. 110k
D. 10k
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