↵ Plz EXPLAIN 2nd statement
The motion due to random collision.
Which of the following options is correct regarding the given information?
A) I and II are true
B) I and III are true.
C) II and III are true.
D) I ,IIand III are true.
Ans.
I-Drift velocity decreases with increase in temperature. This statement is true.
II-For large current. the drift velocity should be in the order of m/s. This statement is false because drift velocity is in the of mm/s
Ill-Motion of the free electrons in a conductor is due to the combination of the motion due to applied electric field and the motion due to random collision. This statement is true.
So. I and Ill are correct.
The correct option is B.
Plz EXPLAIN 2nd statement
Dear Student
Drift velocity of electrons in a conductor is of the order of 10−4 m/s or mm/s. It is very small compared to the thermal speed which is of the order of 105 m/s.
As in statement it is given that order of drift velocity as m/s. So the statement is false.
Regards
Drift velocity of electrons in a conductor is of the order of 10−4 m/s or mm/s. It is very small compared to the thermal speed which is of the order of 105 m/s.
As in statement it is given that order of drift velocity as m/s. So the statement is false.
Regards