Question

What is true about analog signals

Noise affects them less than digital signals
They are transmitted continuously
Noise affects them more than digital signals
They are transmitted in discreet pulses
Analog signals are outdated and don’t have any usefulness in modern technology

Answer 1

The following statements are true about analog signals:

1. **They are transmitted continuously**: Analog signals represent data as continuous waves, meaning they can take on any value within a given range.

2. **Noise affects them more than digital signals**: Analog signals are generally more susceptible to noise and distortion because any interference can alter the signal's wave shape, which may affect the information being conveyed.

The other statements are not accurate:

- **Noise affects them less than digital signals**: This is false; as mentioned, analog signals are more affected by noise.

- **They are transmitted in discreet pulses**: This is false; discrete pulses are characteristic of digital signals, not analog ones.

- **Analog signals are outdated and don’t have any usefulness in modern technology**: This is an oversimplification. While digital technologies are prevalent, analog signals are still in use for various applications, such as audio (vinyl records), radio broadcasting, and some types of sensor outputs. They hold importance in certain contexts and applications.