Excellent teacher. Although we have only had a few classes, my kid is understanding what is being taught, as she is going to give her boards.
Here is a Sample Worksheet for you to Practice. Download this worksheet to see the answers.
I-V characteristics of four devices are shown in Fig. 15.1. Identify devices that can be used for modulation:

‘i’ and ‘iii’.
2.only ‘iii’.
3.‘ii’ and some regions of ‘iv’.
4.All the devices can be used.
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Excellent teacher. Although we have only had a few classes, my kid is understanding what is being taught, as she is going to give her boards.
One of the best physics teacher I've ever come across.Glad to be one of his students. Your expertise in teaching has made physics easy to understand.
Vivek sir is excellent in his way of teaching various concepts in physics ,he will clear all our doubts very patiently and in a way which u will understand it in an easy way
I learned many new things. Our teacher explained every topic in a simple and interesting way, which made learning easier for me. One day, our teacher conducted a fun quiz and group activity. Everyone participated enthusiastically, and we helped each other find the correct answers. It was a joyful moment because we learned something new while enjoying ourselves. My teacher appreciated my efforts, which boosted my confidence and motivated me to work harder. The friendly atmosphere of the coaching class made me feel comfortable asking questions and clearing my doubts. I also made good friends who supported me in my studies. This experience taught me the importance of teamwork, discipline, and regular practice. Overall, my coaching classes have given me not only academic knowledge but also confidence, friendship, and beautiful memories. It is one of the best experiences of my student life, and I will always remember it.
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