Explain how to solve those given problems in detail about Current.

1. Find the current in a copper wire connected to a battery, if a charge of 2.50 C passes through a section of the wire in 3.5 s. 2. How many electrons flow past through a certain cross-sectional area of a wire in 5.4 min, if a current of 15.0 mA was measured in the conductor? 3. Find the current density in a copper wire used for lamp cords with a diameter of 1.75 mm and carries a steady current of 12.5 A to a desk lamp. 4. Aluminum wires (p = 2.7 g/cm* and A = 26.98 u) have better conductivity to weight ratio than copper wires, which allows them to be used for wiring power grids such as overhead transmission lines and local distribution lines. Suppose an aluminum wire with a diameter of 3.5 cm carries a current of 560 A, what would be the drift speed of the electrons in the wire? Assume each aluminum atom supplies one conduction electron. 5. Given the same diameter and current in the previous item, find the (a) current density (p = 8.96 g/cm' and A = 63.55 u) and (b) the magnitude of the drift velocity in a copper wire. Assume that each copper atom supplies one conduction electron