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In the absence of applied potential, the electric current flowing through a metallic wire is zero because

a)

The electrons remain stationary

b)

The electrons are drifted in random direction with a speed of the order of  cm

c)

The electrons move in random direction with a speed of the order close to that of velocity of light

d)

Electrons and ions move in opposite direction



Question ID - 152041 | SaraNextGen Top Answer

In the absence of applied potential, the electric current flowing through a metallic wire is zero because

a)

The electrons remain stationary

b)

The electrons are drifted in random direction with a speed of the order of  cm

c)

The electrons move in random direction with a speed of the order close to that of velocity of light

d)

Electrons and ions move in opposite direction

1 Answer
127 votes
Answer Key / Explanation : (c) -

(c)

At room temperature, the free electrons in a conductor move randomly with speed of the order of . Since, the motion of the electrons is random there is no net charge flow in any direction.

127 votes


127