Question

2
B
Iwo bars AB and BC are kept in contact as shown.
Their lengths are 2L and L respectively and radii arer and
2r respectively. An electric current i is passed through the
А.
bars. Identify the correct option
(A) Electric field in both the bars is equal
(B) Heat produced in bar AB is 8 times the heat produced in bar BC
(C) Potential difference across AB is 4 times that across BC
(D) Current density across AB is 8 times that across BC
c​

Answer 1

Answer:

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