Q: Which one of the following is the best shape of a solid metal rod to form the top end of a lightning conductor?
(a)Pointed (conical tip)
(b)Flat-topped cylinder
(c)Spherical head
(d)Flat rectangular block
Correct Answer: (a)
Loading...
Loading...
Q: Which one of the following is the best shape of a solid metal rod to form the top end of a lightning conductor?
Correct Answer: (a)