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- A wire is 0.81 m long and 0.88 mm² in cross-sectional area. It carries a current of 5.5 A when a 2.6 V potential difference is applied between its ends. Calculate the conductivity of the material of which this wire is made. Number i Units2 What is the SI unit of resistance? A Ω V F In solid metals, which charged particles are free to move throughout the object? Select any/all correct answers. protons neutrons electrons 4 Which factor(s) affect the current in a conductor? Select any/all correct answers. cross-section area density of the charged particles drift speed of the charged partiçlesGiven the following expression for the current i (t) Where, Io 4 A and tı 3 s. Assume that the charge at t 0 is zero, i.e. q(0)-0. What is the value for charge at t 3.5s: q(3.5)-O C Unknown q(3.5)-4 C q(3.5)- 14 C
- If 3.0 x 10-5 electrons flow through a section of a wire of diameter 2.0 mm in 2.0 s, what is the current in the wire? O 7.5 x 107 A 0.12 mA O 0.24 mA O 7.5 x 1014 A hoAn aluminum wire having a cross-sectional area equal to 3.10 x 10-6 m² carries a current of 6.00 A. The density of aluminum is 2.70 g/cm³. Assume each aluminum atom supplies one conduction electron per atom. Find the drift speed of the electrons in the wire. The equation for the drift velocity includes the number of charge carriers per volume, which in this case is equal to the number of atoms per volume. How do you calculate that if you know the density and the atomic weight of aluminum? mm/sA wire has a current of 6.0 mA in it. How do we determine how many electrons pass a given point in a minute?