Describe the working of a transistor as an amplifier. What are its applications in electronic circuits?
Explain the concept of photoelectric effect and the factors affecting the kinetic energy of emitted electrons.
Describe Young’s double-slit experiment and explain how it demonstrates the wave nature of light.
State the importance of transformers in the transmission of electrical power. What are the losses associated with a transformer?
Explain how a capacitor works and derive the expression for the capacitance of a parallel plate capacitor.
Describe the principle of a potentiometer. How can it be used to measure the emf of a cell?
What are the different types of errors that are usually committed in recording
business transaction.
Explain errors of principle and give two examples with measures to rectify
them.
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