Choose the correct statements from following:

A. Resistivity of a conductor increases with increase in its length.
B. When a small resistor is connected in parallel across a galvanometer, it is converted into ammeter.
C. Current density is a vector quantity.
D. Potentiometer is used to measure the electric current.
E. Kirchoff's junction rule is based on the conservation of charge.

Choose the correct answer from the options given below:

B, C & E only

The correct answer is Option (2) → B, C & E only