Answer:
The correct option is d) one-fourth
Reason:
We know that
R = ρl/A
Therefore, when the diameter of the wire is doubled, the resistance becomes one-fourth of the actual value.
Q26. When the diameter of a wire is doubled, its resistance becomes: a) Double b) Four times c) One-half d) One-fourth
Q26. When the diameter of a wire is doubled, its resistance becomes: a) Double b) Four times c) One-half d) One-fourth