PHYSICS IMPORTANT QUESTIONS
1. Why is the base region of a transistor made very thin and lightly
doped?
2. What is Zener diode? How does a Zener diode regulate voltage across
resistance?
3. State Coulomb’s theorem in electrostatics and prove it with the help
of Gauss’s theore
4. Define electric flux.
5. Mention two uses of optical fibre.
6. Write down the principle of wheat-stone bridge and prove it with the
help of Kirchhoff’s law.
7. Define drift velocity and mobility of electron.
8. Explain the use of transistor as a switch with circuit diagram.
9. Describe the working principle of a microscope with ray diagram.
10.what
1. Why is the base region of a transistor made very thin and lightly
doped?
2. What is Zener diode? How does a Zener diode regulate voltage across
resistance?
3. State Coulomb’s theorem in electrostatics and prove it with the help
of Gauss’s theore
4. Define electric flux.
5. Mention two uses of optical fibre.
6. Write down the principle of wheat-stone bridge and prove it with the
help of Kirchhoff’s law.
7. Define drift velocity and mobility of electron.
8. Explain the use of transistor as a switch with circuit diagram.
9. Describe the working principle of a microscope with ray diagram.
10.what
