Electronics and Communication Engineering - Materials and Components - Discussion

Discussion Forum : Materials and Components - Section 1 (Q.No. 12)
12.
If the diameter of a wire is doubled, its current carrying capacity becomes
one-fourth
half
twice
four times
Answer: Option
Explanation:

Current carrying capacity depends on area of cross-section.

Discussion:
23 comments Page 3 of 3.

Sampath said:   8 years ago
Twice is the correct option.

Rajashekar balya said:   7 years ago
R=(4ρ*l)÷D^2.

Harsha said:   10 years ago
r = pl/a.
i = v/r.


Post your comments here:

Your comments will be displayed after verification.