Two conductors made of the same material have lengths `L` and `2L` but have equal resistance. The two are connected in series in a circuit which current is flowing. Which of the following is/are correct?

Options

A. The potential difference across the two conductors is the same
B. the drift speed is larger inte conductor of lengthL
C. The electric field in the first conductor is twice that in the second
D. the electric field in the second conductor is twice that in the first

Answer

A, B, C

Explanation

`a. V=iR`
in series i is same. Hence, `V` is also same as `R` is given same.
b. `R=(rhol)/A`
`R` is same. Hence, `AS` should be smaller in first wire. Secondly `v_d=1/("ne"A)` or `v_dprop 1/A`
`A` of first wise is less. Hence, its drift velocity should be more.
`c. E=V/l or Eprop 1/l` (`Vrarr` same)