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In the presence of an applied electric field in a metallic conductor.
  • a)
    The electrons move in the direction of
  • b)
    The electrons move in a direction opposite to
  • c)
    The electrons may move in any direction randomly, but slowly drift in the direction of
  • d)
    The electrons move randomly but slowly drift in a direction opposite to
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
In the presence of an applied electric field in a metallic conductor....
Conduction of electrons in a conductor.
The motion of electrons is random but in presence of external electric field, they slowly drift opposite to  and cause a current
 
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Most Upvoted Answer
In the presence of an applied electric field in a metallic conductor....
The current is due to flow of charge in a definite direction. In a metal, the free electrons move in all directions haphazardly, in the absence of electric field; the average thermal velocity of electrons is zero. Therefore, there is no current in metal in the absence of electric field.
In presence of electric field, each free electron experiences a force opposite to the direction of field. Due to which the electrons acquire a drift velocity and there is a net flow of charge in a definite direction which constitutes the current.
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Community Answer
In the presence of an applied electric field in a metallic conductor....
Conduction of electrons in a conductor.
The motion of electrons is random but in presence of external electric field, they slowly drift opposite to  and cause a current
 
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Read the following text and answer the following questions on the basis of the same:Tribo-electric series: The tribo-electric series is a list that ranks materials according to their tendency to gain or lose electrons. The process of electron transfer as a result of two objects coming into contact with one another and then separating is called tribo-electric charging. During such an interaction, one of the two objects will always gain electrons (becoming negatively charge d) and the other object will lose electrons (becoming positively charged). The relative position of the two objects on the tribo-electric series will define which object gains electrons and which object loses electrons. In tribo-electric series, materials are ranked from high to low in terms of the tendency for the material to lose electrons. If an object high up on this list (Glass, for exampl e) is rubbed with an object low down on the list (Teflon, for example), the glass will lose electrons to the teflon. The glass will, in this case, become positively charged and the teflon will become negatively charged. Materials in the middle of the list (steel and wood, for example) are items those do not have a strong tendency to give up or accept electrons.Tribo-electric charging is the process of electron transfer between two objects

In the presence of an applied electric field in a metallic conductor.a)The electrons move in the direction of b)The electrons move in a direction opposite to c)The electrons may move in any direction randomly, but slowly drift in the direction of d)The electrons move randomly but slowly drift in a direction opposite to Correct answer is option 'D'. Can you explain this answer?
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