Ans:
It depends upon R=rho l/a where area(a) is
inversely proportional to resistance (R), so if (a) increases, R
decreases & if R is less the leakage current
will take low resistance path so the earth pin should be thicker. It is
longer because the The First to make the connection and Last to
disconnnect should be earth Pin. This assures Safety for the person who
uses the electrical instrument.
No comments:
Post a Comment