Explanation:
At first it is in 14m position but position doesn't matter in displacement, similar case for time taken.
So at first it travels 6m in positive direction.
So displacement= 6m
Then it travels 13 in opposite or negative direction.
So displacement = 6 -13 m = -7 m
Hope it helps ya
Mercury
Good luck on this!
Have fun
Answer:
The resistivity of the wire is not directly proportional to the current density.
Option (e) is correct
Explanation:
Given:
In the Drude model of electrical conduction, the current density is NOT directly proportional to
According to the Drude model, current density is given by.
⇒
Where the number of charge carriers per unit volume, electron charge, the average time interval between successive collisions, electric field present in the wire.
So from the above equation we conclude that resistivity of the wire is not directly proportional to the current density.