A cylindrical conductor has uniform cross-section. Resistivity of its material increases linearly from left end to right end. If a constant current is flowing through it and at a section distance from left end, magnitude of electric field intensity is which of the following graphs is correct
a)b)c)d)
A cylindrical conductor has uniform cross-section. Resistivity of its material increases linearly from left end to right end. If a constant current is flowing through it and at a section distance from left end, magnitude of electric field intensity is which of the following graphs is correct
a)b)c)d)
(b) Let resistivity at a distance from left end be Then electric field intensity at a distance from left and will be equal to Where is the current flowing through the conductor. It means or varies linearly with distance But at has non-zero value. Hence is correct |