Shown in the figure is a semicircular metallic strip that has thickness t and resistivity 
. Its inner radius is R 1 and outer radius is R 2 . If a voltage V 0 is applied between its two ends, a current I flows in it. In addition, it is observed that a transverse voltage 
V develops between its inner and outer surfaces due to purely kinetic effects of moving electrons (ignore any role of the magnetic field due to the current). Then (figure is schematic and not drawn to scale)
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
(a, c, d)
Area of the strip = (t.dr)
So, option is correct.
Electrons are revolving in a circular path so there is a centripetal force on the electron, which provide a transverse electric field. The direction of transverse electric field is radially out side hence inner surface is at higher potential.
So, option is correct.
Current density 
Hence Option is correct.
──────────────────────────────────────────────────────────────────────────────────────────
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