A wire contains a steady current of 2 A. The number of electrons that pass a cross section in 2 s is: O 2 0 4 O 6.3 x 1018 O 1.3 x 1019 O 2.5 x 1019
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A: Given : I = 4 A Q = 10 C
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A: Given data: Two wires made of same material and have same uniform current density.
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A: Given data: Current (I) = 3 mA = 3×10-3 A Time (t) = 12 s Required: Number of electrons (n)
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A: Given,I=4 At=5 mins= 300 sec
Q: A steady current of 3 mA flows in a wire for 12 s. How many coulombs of charge flow through the…
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A: Current flowing through the resistor is I = 2.5 A Time of flow is t = 1.5 min
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A: Current (I) = 2 A time (t) = 5 min
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A: According to Bartleby Q &A guidelines , i am giving answer of first question Thankyou.
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- Taking R = 1.00 k and = 250 V in Figure P21.49, determine the direction and magnitude of the current in the horizontal wire between a and e. Figure P21.49An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 3.00 amps, (a) What is the absolute value of the charge density in the wire? (b) What is the drift velocity of the electrons? (c) What would be the drift velocity if the same gauge copper were used instead of aluminum? The density of copper is 8.96 g/cm3 and thedensity of aluminum is 2.70 g/cm3. The molar mass ofaluminum is 26.98 g/mol and the molar mass of copper is 63.5 g/mol. Assume each atom of metal contributes one free electron.Figure P21.6 represents a section of a conductor of nonuniform diameter carrying a current of I = 5.00 A. The radius of cross-section A1 is r1 = 0.400 cm. (a) What is the magnitude of the current density across A1? The radius r2 at A2 is larger than the radius r1 at A1. (b) Is the current at A2 larger, smaller, or the same? (c) Is the current density at A2 larger, smaller, or the same? Assume A2 = 4A1. Specify the (d) radius, (e) current, and (f) current density at A2. Figure P21.6
- A 0.900-V potential difference is maintained across a 1.50-m length of tungsten wire that has a cross-sectional area of 0.600 mm2. What is the current in the wire?A particle accelerator produces a beam with a radius of 1.25 mm with a current of 2.00 mA. Each proton has a kinetic energy of 10.00 MeV. (a) What is the velocity of the protons? (b) What is the number (n) of protons per unit volume? (b) How many electrons pass a cross sectional area each second?A current of 2 A flows through a gold wire with a radius of 3 cm and a length of 15 m. There are 3.50x1020 free electrons/m3 in gold. What is the magnitude of the drift velocity of the free electrons in the wire? -2 т O 1.783x10 -2 т 5.350x10 S О 12.609 т 50.455 m
- A 2.50 A current is carried by a copper wire of radius 1.0 mm. If the density of conduction electrons is 8.0 x 1028 m-3, what is the drift velocity of the conduction electrons? O 3.2 x 10-4 m/s O 6.2 x 10-5 m/s O 3.0 x 108 m/s O 6.2 x 10-4 m/s O 1.6 x 10-5 m/sSilver wire has a cross-sectional area A = 2.0 mm2. A total of 9.4 x 10 electrons pass through the wire in 3.0 s. The conduction electron density in silver is 5.8 x 1028 electrons/m. What is the drift velocity of these electrons?O a 1.80 x 10-6 m/s Ob-1.79 x 10-12 m/s 1.80 x 10-9 m/s O d. 170 x 10-19 m/s A 5.31 mm2 silver wire has 5.8 x 1028 free electrons per cubic meter and a current of 88.5 mA passes through the wire. Determine the deflection speed of the electrons in the wire.
- A conductor has a cross-sectional area of 2.3×10 6 m² and the number of free electrons per unit volume is 8.5x 1028 electron/m³. When the current is 10.5 A, find the drift speed (in mm/s) of the electrons. Use the charge of the electron to be 1.6x 10-19 C. Select one: O A. 0.34 O B. 44.07 OC. 0.44 OD. 0.23 OE. 33.57 Next pageA copper wire that is 2.70 mm in radius with density 8.94 g/cm3 has a current of 6.10 A. The molar mass of copper is 63.5463 g/mol, and each copper atom contributes one free electron. What is the drift speed of the electrons in the copper wire?A steady current of 3 mA flows in a wire for 12 s. How many coulombs of charge flow through the wire? O 0.026 C O 0.036 C O 26 C O 36 C