Need for modulation

Relate antenna height and frequency

• Inversely proportional

• Directly proportional

• Equal

Relate power radiated by antenna and frequency

• Directly proportional

• Inversely proportional

• Equal

For minimizing circuit complexity inductance L value must be

• Low

• High

• Any

______ is possible through modulation.

• Multiplexing

• Demultiplexing

• Amplification

Signal quality is improved by

• Modulation

• Multiplexing

Modulation enables

• Wireless communication

• Noiseless communication

Who invented Telegraph?

• Samuel Morse

• Graham Bell

• Guglielmo Marconi

Who invented Telephone?

• Alexander Graham Bell

• Guglielmo Marconi

• Samuel Morse

For low values of L, frequency must be

• High

• Low

• Moderate

Choose the incorrect answer. The benefits of wireless communication include

• Low loss

• Mobility

• Accessibility

• Scalability