A copper wire is stretched to make it 
longer. The percentage change in its electrical resistance if its volume remains unchanged is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Resistance, 
Since resistivity and volume remains constant therefore 
change in resistance
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Surface of certain metal is first illuminated with light of wavelength and then, by light of wavel…
The magnetic field associated with a light wave is given at the origin by If this light falls on a…
The pitch and the number of divisions, on the circular scale for a given screw gauge are and resp…
In an electron microscope, the resolution that can be achieved is of the order of the wavelength of…
The diameter and height of a cylinder are measured by a meter scale to be and respectively. What …
A metal plate of area is illuminated by a radiation of intensity . The work function of the metal…