Refer all the following circuits and try them at home and in laboratory. All the circuits are fully tested and checked twice before publishing. If you have any suggestions regarding this, please contact us.
The most authentic collection of 11-12th bifocal electronics related documents like notes, syllabus, solved unsolved problem booklets, practical booklets, updated articles and many more...! Check our great collection of study material.
Step by step explanation, with each and every step for calculation is given. Selected problems from HSC Board Papers. Systematically written solved unsolved problems booklet. All 6 chapters: Instruments, Power Supply, Transducer, Operational Amplifier, Communication Electronics, Study of Integrated Circuits; are covered. This booklet contains selected and regular problems asked in HSC Board examination of […]
Question: How does CRO work? Draw block diagram of CRO and explain its working block-wise. Best Answer There are two section in block diagram, vertical section and horizontal section. Vertical section Signal to be observed on screen, is connected to y-input of CRO. The input signal is attenuated or amplified depending on the requirement. We […]
Question: How does electrostatic focusing system work in CRT? Best Answer It consists of pre accelerating anode, focusing anode and second accelerating anode. The anodes are cylindrical in shape and connected to high positive voltage in decreasing order from left to right. So due to high potential difference between the anodes, electrostatic lens are formed. […]
Question: What is CRT? How does it work? Explain its working with diagram Best Answer CRT is the heart of CRO. It is made up of thick glass and evacuated. The filament, cathode and control grid form the electron gun. It produces diverged beam which is accelerated and focused by the pair of pre-accelerating and […]
This is a special application of IC555 clap switch with timer mini project. It uses a condenser mic to pickup the clap like sharp sound and trigger the IC 555 designed as monostable multivibrator, as shown in the following circuit. Working of the circuit The circuit uses one condenser mic to receive the clapping sound […]
This is a very interesting IC 555 soft touch switch door lock mini project. It is very easy to construct and useful for your school or college level mini project submission. The actual size PCB layout of the project is also given here, so that you will be able to construct it within an hour if […]
Why am I publishing this animated working of bridge rectifier circuit? Because in my long teaching experience, I have noticed that sometimes, the 11-12th standard students get confused with the working of bridge rectifier and cannot properly explain it. This same case occurs for HWR & FWR circuits as well. So I have created the animations of all these three […]