Question 1

By referring to Figure A1. This circuit is known as

Accepted Answer

An Integrator

Answer

A differentiator

Answer

A non-inverting amplifier

Answer

A summing amplifier

Question 2

A timer is connected in astable mode. Calculate the Time High is when R1=8kΩ, R2=2.5kΩ and C1=0.1μF. Given C=0.01μF is used as noise diverter

Accepted Answer

0.72 ms

Answer

0.76 ms

Answer

0.74 ms

Answer

0.70 ms

Question 3

_____________ is a device that allows certain frequency signal and remove unwanted signal.

Accepted Answer

Filter

Answer

Oscillator

Answer

Timer

Answer

Op amp

Question 4

Which is the correct statement for passive filters

Accepted Answer

The circuit consist of inductor, capacitor and resistor.

Answer

It is possible to increase gain.

Answer

It requires dual power supply.

Answer

High input impedance.

Question 5

The components that commonly used in both passive and active filters are …..

Accepted Answer

Resistor and Capacitor

Answer

Op amp and inductor

Answer

Operational Amplifier and Resistor

Answer

Capacitor and Inductor

Question 6

By using the voltage gain formula, calculate the voltage gain for circuit in Figure B1.

Accepted Answer

151

Question 7

Then what should be altered in the circuit in order to increase its overall voltage gain.                                      (Give 2 answer)

Accepted Answer

Increasing Rf and Decreasing Rin

Question 8

The value of a RC low pass filter is given as resistor, R = 100Ω and capacitor, C = 0.0047µF. calculate the cut off frequency. (Please write SI unit also)

Accepted Answer

339khz

Question 9

Give your full name please

Accepted Answer

nama masing2

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