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Filter circuit

Total questions: 10

Worksheet time: 6mins

Name
Class
Date
1.

An electrical filter is a

a)

Phase-selective circuit

b)

Frequency-selective circuit

c)

Filter-selective circuit

d)

None of the mentioned

2.

Filters are classified as

a)

Analog or digital

b)

Passive or active

c)

Audio or radio frequency

d)

All of the mentioned

3.

Why inductors are not preferred for audio frequency?

a)

Large and heavy

b)

High power dissipation

c)

High input impedance

d)

None of the mentioned

4.

The problem of passive filters is overcome by using

a)

Analog filter

b)

Active filter

c)

LC filter

d)

A combination of analog and digital filters

5.

Find out the incorrect statement about active and passive filters.

a)

Gain is not attenuated in active filter

b)

Passive filters are less expensive

c)

Active filter does not cause loading of source

d)

Passive filters are difficult to tune or adjust

6.

What are the most commonly used active filters?

a)

All of the mentioned

b)

Low pass and High pass filters

c)

Band pass and Band reject filters

d)

All-pass filters

7.

Ideal response of filter takes place in

a)

Pass band and stop band frequency

b)

Stop band frequency

c)

Pass band frequency

d)

None of the mentioned

8.

Find out the low pass filter from the given frequency response characteristics.

a)
b)
c)
d)
9.

Which filter performs exactly the opposite to the band-pass filter?

a)

Band-reject filter

b)

Band-stop filter

c)

Band-elimination filter

d)

All of the mentioned

10.

Given the lower and higher cut-off frequency of a band-pass filter are 2.5kHz and 10kHz. Determine its bandwidth.

a)

750 Hz

b)

7500 Hz

c)

75000 Hz

d)

None of the mentioned