blazinazn

Hey, can u guys help me answer a few of these questions? A. How fibre optics are capable of transferring information in the form of laser light pulses B. How laser light pulses are then converted to digital signals for audio, video or computer data C. The advantages of this form of long distance information transfer. Can you also give me a few websites that I can look through myself? Thanks.

Why doesn't an AC motor need a commutator?