Explain the ampitude modulation with necessary diagrams.

Explain the basic elements of communication system with the necessary block diagram.

Explain the ground wave propagation and space wave propagation of electromagnetic waves through space.

What do you know about GPS? Write a few applications of GPS.

Give the applications of lCT in mining and agriculture sectors.

Modulation helps to reduce the antenna size in wireless communication - Explain

Fiber optic communication is gaining popularity among the various transmission media -justify.

Give circuit symbol, logical operation, truth table, and Boolean expression of
i) AND gate
ii) OR gate
iii) NOT gate
iv) NAND gate
v) NOR gate and
vi) EX-OR gate.

Elucidate the formation of a N -type and P-type semiconductors.

Explain the formation of depletion region and barrier potential in PN junction diode.

Draw the circuit diagram of a half-wave rectifier and explain its working.

Explain the construction and working of a full wave rectifier

What is an LED? Give the principle of its operation with a diagram.

Sketch the static characteristics of a common emitter transistor and bring out the essential features of input and output characteristics.

Describe the function of a transistor as an amplifier with the neat circuit diagram. Sketch the input and output wave forms.

Transistor functions as a switch. Explain.

State Boolean laws. Elucidate how they are used to simplify Boolean expressions with suitable example.

Explain the working principle of a solar cell. Mention its applications.