Two bars of radius and
are kept in contact as shown. An electric current
is passed through the bars. Which one of the following is correct?
a) |
Heat produced in bar |
b) |
Electric field in both halves is equal |
c) |
Current density across |
d) |
Potential difference across |
Two bars of radius and
are kept in contact as shown. An electric current
is passed through the bars. Which one of the following is correct?
a) |
Heat produced in bar |
b) |
Electric field in both halves is equal |
c) |
Current density across |
d) |
Potential difference across |
(a) Current flowing through both the bars is equal. Now, the heat produced is given by or or |