Statement 1 : A current flows in a conductor only when
there is an electric field within the conductor.
Statement 2 : The drift velocity of electron in presence of
electric field decreases.
Answers
Answer:
STATEMENT 1 : One characteristic of a conductor at electrostatic equilibrium is that the electric field anywhere beneath the surface of a charged conductor is zero. If an electric field did exist beneath the surface of a conductor (and inside of it), then the electric field would exert a force on all electrons that were present there.
STATEMENT 2: Before the presence of electric field, the free electrons move randomly in the conductor, so their drift velocity is zero and therefore there is no current in the conductor. In the presence of electric field, each electron in the conductor experience a force in a direction opposite to the electric field. Now the free electrons are accelerated from negative and to the positive end of the conductor and hence a current starts to flow from the conductor.
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Answer:
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