Circuits of filter and regulators

In an AC/DC power supply connected to a 120 V/50 Hz voltage source the frequency of the signal after full wave rectification will be...

• 120 Hz

• 50 Hz

• 100 Hz

Three common types of filters used in analog devices are...

• Low pass filter

• Medium pass filter

• High pass filter

• Band pass filter

• Common emitter amplifier

Two types of low pass filter are

• type T filter

• Type π filter

• Type L filter

The frequency of the DC signal is...

• 60 Hz

• 0 Hz

• 50 Hz

The cut off frequency of the circuit represented below is...

• 10 Hz

• 5 Hz

• 60 Hz

What type of filter is represented?

• "L" Low pass filter

• "T" Low pass filter

• Band pass filter

What type of filter is represented?

• High pass filter

• "T" Low pass filter

• Band pass filter

The function of the regulation circuit in a power supply is...

• control frequency

• Keep the voltage in a constant level

• Produce voltage

What is the output voltage of the 7812 voltage regulator

• 5 V

• 12 V

• 24 V

What is the output voltage of the 7805 voltage regulator

• 5 V

• 12 V

• 24 V