Select the correct statement(s)
A. A current carrying conductor is electrically neutral.
B. In a current carrying conductor, it is possible, all the free electrons can have same drft velocity.
C. In a current carrying conductor, the speed of the all the free electrons need not be same.
D. The electric field at any point inside the current carring conductor is non-zero, The electic field just outside the current carrying conductor is non-zero.
