Question 1

What is the function of a filter circuit?

Accepted Answer

To allow certain frequencies to pass through while blocking others

Answer

To reduce the voltage of all frequencies

Answer

To increase the resistance of the circuit

Answer

To amplify all frequencies equally

Question 2

What is the main difference between passive and active filters?

Accepted Answer

Passive filters do not require an external power source, while active filters do.

Answer

Active filters are more expensive than passive filters

Answer

Passive filters have a higher cutoff frequency than active filters

Answer

Passive filters can amplify signals, while active filters cannot

Question 3

What does a high-pass filter do?

Accepted Answer

Attenuates low frequencies and allows high frequencies to pass through

Answer

Attenuates all frequencies equally

Answer

Attenuates high frequencies and allows low frequencies to pass through

Answer

Has no effect on the frequencies

Question 4

Which type of filter is used to isolate a specific range of frequencies?

Accepted Answer

Band-pass filter

Answer

All-pass filter

Answer

Delay filter

Answer

Notch filter

Question 5

Which type of filter circuit requires an external power source for operation?

Accepted Answer

Active filter

Answer

Resonant filter

Answer

Passive filter

Answer

Notch filter

Question 6

What is the main function of a band-stop filter?

Accepted Answer

To attenuate or reject a specific range of frequencies while allowing all others to pass through

Answer

To eliminate all frequencies except a specific range

Answer

To pass only frequencies within a specific range

Answer

To amplify all frequencies equally

Question 7

In a passive RC low-pass filter, what role does the resistor play?

Accepted Answer

The resistor sets the cutoff frequency of the filter

Answer

The resistor blocks low frequencies

Answer

The resistor determines the gain of the filter

Answer

The resistor allows high frequencies to pass through

Question 8

What is the main advantage of an active filter over a passive filter?

Accepted Answer

Active filters can provide amplification and have lower insertion loss compared to passive filters.

Answer

Active filters have a higher cutoff frequency than passive filters

Answer

Active filters dissipate less power than passive filters

Answer

Passive filters are more cost-effective than active filters

Question 9

What is the type of filter circuit shown in figure below?

Accepted Answer

Low-pass passive filter

Answer

High-pass active filter

Answer

High-pass active filter

Answer

Low-pass active filter

Question 10

Choose the CORRECT statement of the filter.

Accepted Answer

Two types of filter are passive filter and active filter.

Answer

Passive implementations of linear filter are based on combination of resistors, inductors,capacitors and transistor

Answer

Active filters are implemented using a active component only

Answer

Active filters cannot achieve resonance without the use of inductors

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