Question { IBM, 25645 }

what is the difference between electrical and electronics
technicions and what they do/ and for what porpose?

Answer

the main difference between electrical and electronics is

The device like capacitors,inductors ,resistors ae come
under electronics because they can apporated in both ac and
based on operation
The devices which are work at high voltages like t.v home
appilicants and industrial applicants are comes under
electrical devices
though thiey are seperated but electrical products required
electronic devices like capacitors and resistors
thank you

Question { BARC, 12931 }

how to calculate the current carrying capacity of a
conductor. How it is related to diameter of cable or
conductor

Answer

generally current carrying is depends on resistance of
conducting elements but we now pure conductors are not exists
so internal resistance is considered now calculation is made
as resistance directly proportional to area of conducting
element R=l*a/s
here l=length of conductor
a = area
s = specific conductance