Current Electricity and Electrical InstrumentMedium
Question
The drift velocity of electrons in a conducting wire is of the order of 1mm/s, yet the bulb glows very quickly after the switch is put on because
Options
A.The random speed of electrons is very high, of the order of 106 m/s
B.The electrons transfer their energy very quickly through collisions
C.Electric field is set up in the wire very quickly, producing a current through each cross section, almost instantaneously
D.All of above
Solution
The drift velocity of electrons in a conducting wire is of the order of 1mm/s. But electric field is set up in the wire very quickly, producing a current through each cross section, almost instantaneously.
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