NEET Physics Current Electricity Questions Solved


The following table gives the lenght of three copper wires, their diameters, and the applied potential difference across their ends. Arrange the wires in increasing order according to the following:

(a) The mangnitude of the electric field within them,

(b) The drift speed ofd electrons through them, and 

(c) The current density within them.

 wire no.                Length                Diameter              Potential Difference

    1                         L                        3d                              V

    2                        2L                       d                                V

    3                        3L                      2d                              2V

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