Question

1) Give the equivalent velocity value of optical signals inside the fibre optic cable?
2) In a fibre optic communication system whether the source signal is either analog or digital?
3) In what way magnetic fields are used to store in a magnetic device?
4) Write about the spontaneous magnetization material?
5) Which property is used to identify, whether the material is easy to magneize ? Give the symbol and its expression?



please answer fast , it is very urgent​

Answer 1

Answer:

3 one is Write about the spontaneous magnetization material.