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Viva-voce Electrtonic Devices

The examination season has begun. The first crucial stage of C.B.S.E examination is the practical examination which must be on now or round the corner and would probably be over by 15th February 2014. This period offers you with a golden opportunity to prepare a few topics for the theory examination as well. Remember the theory paper also contains a practical based question of 2 – 3 marks.

As detailed earlier, the practical syllabus has 3 parts –

1.      Electricity

2.      Ray Optics

3.      Semiconductors

So before you go in for your practical examination, prepare these topics well.

Viva-voce questions for part 1 & part 2 have been posted earlier..

Part III is here for you. May I add that this is only a collection of viva questions from your practical books but in a form you will find handy to use.

It is advisable to make a group of students if you have not done so far. Plan preparation and discuss the questions with each other. This will give you much needed practice and confidence to express yourself when you actually go for the viva; an important part of the practical examination

Important diagrams for this sub-unit

  • Symbols of different types of diodes : pn junction, zener diode,LED etc.
  • Forward & Reverse biasing
  • Circuit for study of forward  & reverse characteristics of pn junction
  • Circuit for study of reverse ch of zener diode
  • Symbols of pnp and npn transistor
  • Circuit for study of characteristic curves of transistor in common emitter mode

It is also advisable to practice diagrams for half wave full wave rectifier. The theory should be carefully prepared if the project you selected is based on electronic devices.

Needless to say that the practice will help you in CBSE theory exams well.

Remain relaxed when you are called for viva. Most of the examiners are friendly and will try to get the best out of you. So get started.

Click below to begin!

Viva-Voce – Semiconductors 



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