When drift velocity is so small, how is it that an electric bulb lights up as soon as we turn the switch on?

Drift velocity in a metallic conductor: At room temperature there are large number of free electrons having zero average velocity, but when electric field is applied, the free electrons start moving in a direction opposite to the direction of the applied field with a velocity called drift velocity. The magnitude of electric field set up across the ends of the conductor is given by

If drift velocity of electron as well as charge on electron is very small, how can we still obtain large amount of current in aconductor?

Zubeda made n electric circuit using a cell holder shown in fig.14.4, a switch and a bulb. When she put the switch in the 'ON' position, the bulb did not glow. Help zubeda in identifying the possible defects in the circuit.

If the electron drift speed is so small and the electron's charge is small, how can we still obtain large amount of current in a conductor?

Direction. In the follwing questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as (A). If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if asssertion is true, but reason if false, (D) if both assertion and reason are false Assertion :the electric bulb glows immedicately, when switched on. Reason : The drift velocity of electrons in a metallic wire is very high.