These are the conceptual study questions to enrich your GK of 12th standard bifocal electronics subject. These questions will definitely compel you to think logically and to study the relevant chapter to understand the logic behind each of the question.
Conceptual study questions on Chapter 6, Study of Integrated Circuits
- Why IC 555 is named as IC555? Explain with details.
- Is it necessary to adjust offset nulling in IC741? Why?
- What is the use of control voltage pin-5 of IC555? Thus explain 2/3 and 1/3 limits when we apply external wave e.g. triangular wave at pin-5 of the IC.
- What is PAM? How IC555 can be used as PAM circuit?
- What is the operating voltage of IC 555?
- If we increase or decrease the operating voltage of IC555, why it is so that it does NOT change the charging and discharging time of the external capacitor connected in – say – AMV mode?
- How we can use IC555 as ONE SHOT MULTIVIBRATOR i.e. monostable multivibrator without using pin-2 of the IC?
- Can we use IC555 as an amplifier? Give reason to your YES/NO answer.
We suggest you to read the chapter from Paper 1 and then try to solve these questions. If you have any doubt or queries about it, don’t hesitate to contact us at this link.
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