12:06Current from drift velocity (I = neAvd) | Electricity | Physics | Khan AcademyKhan Academy India - English1277views
12:25Drift velocity (concept & intuition) | Electricity | Physics | Khan AcademyKhan Academy India - English318views
Multiple ChoiceTypical household wiring in the United States is 14-gauge copper wire. 14-gauge wire has a radius of 0.815mm. What is the electron drift speed if a 10A current is carried in a 14-gauge wire?433views
Multiple ChoiceWhat is the current density in a wire with a radius of 0.815mm carrying a current of 5.0A?261views
Multiple ChoiceWhat current does a 0.23V/m electric field create in an iron wire of 0.8mm mm radius?204views
Multiple ChoiceWhat is the electron current in a gold wire with a radius of 1.5mm when the electron drift speed is 1.0×10−4m/s?204views
Textbook QuestionPure silicon at room temperature contains approximately 1.0 * 10^16 free electrons per cubic meter. (a) Referring to Table 25.1, calculate the mean free time t for silicon at room temperature. (b) Your answer in part (a) is much greater than the mean free time for copper given in Example 25.11. Why, then, does pure silicon have such a high resistivity compared to copper?147viewsHas a video solution.
Textbook QuestionThe two wires in FIGURE P27.63 are made of the same material. What are (b) the electron drift speed in the 2.0-mm-diameter segment of the wire?14viewsHas a video solution.
Textbook QuestionThe electron drift speed is 2.0 X 10⁻⁴ m/s in a metal with a mean time between collisions of 5.0 x 10⁻¹⁴ . What is the electric field strength?22viewsHas a video solution.