Question
Physics Question on speed and velocity
A current of 2 A flows through a wire of crosssectional area 25.0 mm2 . The number of free electrons in a cubic meter are 2.0 x 1028 . The drift velocity of the electrons is _____ x 10-6 ms-1 (Given, charge on electron = 1.6 x 10-19C)
Answer
The correct answer is: 25.