Determine the total current on a circular wire of radius 4mm and J A/m².
Q: The National Electric Code specifies a maximum current of 10 A in 16 gauge copper wire (1.29 mm…
A: Required : The current density.
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Q: The quantity of charge q (in coulombs) that has passed through a surface of area 2.05 cm2 varies…
A: Given: q=4t3+6t+6A=2.05 cm2 =2.05×10-4 m2
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A: Given: time interval of discharge, t = 2 ns = 2 × 10-9 s numbers of electrons get discharged, n =…
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Q: A rectangular block of copper has sides of length 14 cm, 26 cm, and 41 cm. If the block is connected…
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Q: A copper wire has a circular cross section with a radius of 1.06 mm. (a) If the wire carries a…
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Q: A wire has a radius of 2.5 m. The current density carried by the wire is a function of distance…
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Q: When a current of 0.218 A is present in a wire 20.0 m in length with cross-sectional area 8.19 x 10…
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Q: The magnitude J of the current density in a certain wire with a circular cross section of radius R =…
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Q: The quantity of charge q (in coulombs) that has passed through a surface of area 2.10 cm2 varies…
A: Instantaneous current is given by :- I = d(q)/d(t) Here, I = instantaneous current q = charge = 5t3…
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Q: A small but measurable current of 1.2 × 10-10 A exists in a copper wire whose diameter is 2.5 mm.…
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Q: The magnitude J of the current density in a certain wire with a circular cross section of radius R =…
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Q: A current of 44.7 mA flows in a silver wire of diameter 2.55 mm. Find the electric field strength…
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Q: The current-density magnitude in a certain circular wire is J = (2.75×10¹0 A/mª)r², where r is the…
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Q: The quantity of charge q (in coulombs) that has passed through a surface of area 2.05 cm2 varies…
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Q: A steady 4.38-mA current is present in a wire of diameter 1.0 mm. Calculate the drift velocity of…
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Q: A wire with length 100 m and radius 12mm. A current passing in it with 20 A. Calculate the current…
A: Given: Length of wire, L=100 m radius, r = 12 mm Current, I = 20 A Current density, j=IA
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- A steady 4.46-mA current is present in a wire of diameter 1.0 mm. Calculate the drift velocity of the electrons, in nanometers per second, knowing that the concentration of free electrons is 1.87 x 1028 electrons per cubic meter. The charge of the electron is 1.60 x 10-19C.If the current in a wire of a CD player is 4.99 mA, how long would it take for 2.01 C of charge of pass through a cross-section area of this wire?this problems is giving me hard time
- What is the current in a wire of radius R = 2.83 mm if the magnitude of the current density is given by (a) J, - Jor/R and (b) J, = Jo(1-r/R) in which r is the radial distance and Jo = 7.58 x 104 A/m2? (c) Which function maximizes the current density near the wire's surface? (a) Number i Units (b) Number i Units (c)A conductor of uniform radius 1.16 cm carries a current of 2.70 A produced by an electric field of 119 V/m. What is the resistivity of the material?A copper wire has a circular cross section with a radius of 1.06 mm. (a) If the wire carries a current of 4.03 A, find the drift speed (in m/s) of electrons in the wire. (Take the density of mobile charge carriers in copper to be n = 1.10 ✕ 1029 electrons/m3.) m/s (b) For the same wire size and current, find the drift speed (in m/s) of electrons if the wire is made of aluminum with n = 2.11 ✕ 1029 electrons/m3. m/s
- A beam contains 2.7 x 109 doubly charged positive ions per cubic centimeter, all of which are moving north with a speed of 4.9 × 105 m/s. What is (a) the magnitude of the current density and (b) direction of the current density . (c) What additional quantity do you need to calculate the total current i in this ion beam? (a) Number Units A/m^2 to the north (b) cross-sectional area of ion beam (c) Use correct number of significant digits; the tolerance is +/-1 in the 2nd significant digitA total charge of 6.58 mC passes through a cross-sectional area of a wire in 1.83 s. What is the current in the wire? Answer in units of mA.