MCQs

In filter terminology, a single RC circuit is called: A diagonal A zero A resonator A pole Correct answer: 4. A pole

The input element in ideal op-amp integrator is: Resistor Capacitor Inductor Diode Correct answer: 1. Resistor

The feedback element in op-amp integrator is: Resistor Capacitor Inductor Diode Correct answer: 1. Resistor

The feedback element in ideal op-amp integrator is: Resistor Capacitor Inductor Diode Correct answer: 2. Capacitor

To use a summing amplifier as an averaging amplifier the ratio Rf/R should equal to: n2 1/n n 0.5n Correct answer: 2. 1/n

A two input summing amplifier having Rf = 10k ohm and R1 = R2 = R= 5k ohm, and V1 = V2 = 3 V will provide output: 3 V -3 V 6 V -6 V Correct answer: 4. -6 V

The output voltage of a unity gain summing amplifier having three inputs 3 V, 4 V, and 5 V is: 12 V -12 V 24 V 36  V Correct answer: 2. -12 V

For unity-gain summing amplifier with 3 inputs V1, V2, and V3 the output will be: V1 + V2 + V3 – (V1 + V2 + V3) 2(V1 + V2 + V3) 3(V1 + V2 + V3) Correct answer: 2. – (V1 + V2 + V3)

Total number of inputs on summing amplifier: Two Three Four Any of these Correct answer: 4. Any of these