Circuit Debugging Prelims

The CB amplifier is not commonly used for

• As a current buffer

• Matching a very low impedance source

• Amplification

• As a constant current source

Cascading increases lower cut-off frequencies.

• True

• False

Which of the following gates is known as coincidence detector ?

• AND gate

• OR gate

• NOT gate

• NAND gate

Which of the following components has polarity?

• Resistor

• Capacitor

• Inductor

• Transformer

The given figure is the I-V graph. Find the R value.

• 16 ohm

• 4 ohm

• 8 ohm

• 12 ohm

Find the type of logic circuit given below.

• PLA

• PAL

• PLD

• None of the above

Find the value of the resistor?

• 220k

• 10k

• 1k

• 2k

In the diagram below, what type of component is represented?

• Capacitor

• Diode

• Resistor

• None of the above

Choose an appropriate name for this circuit. 

• Colpitts oscillator  

• Hartley oscillator 

• RC phase-shift oscillator

• Wien bridge oscillator

which among the following is current controlled device

• MOSFET

• BJT

• IGBT

• FET