1.

Statement I: If an electric field is applied to a metallic conductor, the free electrons experience a force but do not accelerate, they only drift at a constant speed. Statement II: The force exerted by the electric field is completely balanced by the Coulomb force between electrons and protons .

Answer»

Statement I is true, Statement II is True, Statement II is a correct explanation for Statement I.
Statement I is True, Statement II is True, Statement II is not a correct explanation for Statement I.
Statement I is True, Statement II is False.
Statement I is False, Statement II is True.

Solution :C. The elctrons suffer a large number of COLLISIONS with the
positive ions of the conductor. Although the electric field
accelerates an electron between two collisions, it is decelerated
by COLLISION. The NET accleration averages out to zero and the
electron acquires a constant average speed. The gain in speed
between collisions is LOST in the next collision.


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