In the above circuit the current ix is___________?
In the above circuit the current ix is___________?
A. 0.6A
B. 0.5A
C. 0.2A
D. 1/12A
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An ideal OP-AMP is an ideal__________?
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 sourceIn the differential voltage gain & the common mode voltage gain of a differential amplifier are 48db & 2db respectively, then its common mode rejection ratio is________________?
In the differential voltage gain & the common mode voltage gain of a differential amplifier are 48db & 2db respectively, then its common mode rejection ratio is________________?A. 23dB
B. 25dB
C. 46dB
D. 50dBIf ground is applied to the (+) terminal of an inverting op-amp, the (–) terminal will_____________?
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 signalThe ideal OP-AMP has the following characteristics
The ideal OP-AMP has the following characteristicsA. Ri=∞ ,A=∞ ,R0=0
B. Ri=0 ,A=∞ ,R0=0
C. Ri=∞ ,A=∞ ,R0=∞
D. Ri=0 ,A=∞ ,R0=∞Hysteresis is desirable in Schmitt-trigger, because______________?
Hysteresis is desirable in Schmitt-trigger, because______________?A. Energy is to be stored/discharged in parasitic capacitances
B. Effects of temperature would be compensated
C. Devices in the circuit should be allowed time for saturation and desaturation
D. It would prevent noise from causing false triggeringCalculate the cutoff frequency of a first-order low-pass filter for R1 = 2.5kΩ and C1 = 0.05μF___________?
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