Diode and transistor

Which parameter is maintained constant in zener diode?

• Power

• Current

• Voltage

• Resistance

What is the meaning of maximum safe reverse voltage across a diode?

• PIV voltage

• Knee voltage

• Break down voltage

• Reverse break down voltage

Which circuit produces the ripple waveform?

• Amplifier circuit

• Regulator circuit

• Oscillator circuit

• Filter circuit

Which component filter the ripples in the rectifier circuit?

• DIAC

• Diode

• TRIAC

• Capcitor

What is the output frequency of the full wave rectifier with input frequency of 50 Hz?

• 40 Hz

• 60 Hz

• 100 Hz

• 200 Hz

Which diode is used in low power communication circuit?

• Signal diode

• Rectifier diodes

• Switching diode

• High power diodes

What is the process of adding impurities to a pure semiconductor material?

• Doping

• Etiching

• Forming

• Diffusion

How much is the regulated output voltage ?

• 6V

• 12V

• 18V

• 22V

Which impurity is added to form P type semiconductor material?

• Arsenic

• Gallium

• Antimony

• Phophorus

Which impurity is added to pure semiconductor to form N type material?

• Boron

• Indium

• Arsenic

• Gallium