Problem 1 A single nerve or muscle cell is stretched along the r aris and embedded in an infinite homoge- neous medium of conductivity .. Current io leaves the cell at r = b and enters the cell again at x = -b. Find the current density j at distance r from the aris in the I = 0 plane.
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Q: V An aluminum wire having a cross-sectional area of 4.00 × 10–6m² carries a current of 5.00 A. The…
A: SOlution: Given that A = 4x10-6 m2 I = 5 Adensity = 2.7 g /cm3
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A: Write the given values with the suitable variables. t1=50 μs=50×10-6 st2=200 μs=200×10-6 sC=4…
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Q: Is this the right answer?
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Q: Problem 1: The conductive tissues of the upper leg can be modeled as a 40-cm-long, 12-cm-diameter…
A: Given that: Length, L=40 cm=0.40 mDiameter, D=12 cm=0.12 mRadius, R=6 cm=0.06 mResistivity of…
Q: At 20°C, a 7.5 m long copper wire has a cross-sectional diameter of 1 mm. If 15 A of current flow…
A: temperature, T=20 o C length of copper wire, l=7.5 m cross-sectional area, A=1 mm= 1x (10-3 m)2 = 1…
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Q: An aluminum wire of radius 1.00 mm carries a current of 1.00 mA. The density of aluminum is…
A: Given that:An aluminium wire has,r=1.00 mmI=1.00 mAρ=2.70×103 kg/m3Molar mass=26.98 g==26.98×10-3…
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A: The diameter of the wire, d=0.0644mm=0.0644×10−3m.So its radius isr=d/2=0.0644×10−32m.So the…
Q: Calculate the average current (in A) in the lightning bolt.
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Q: The current density of a silver wire is 3.20x106 A/m2 . If the current and the drift velocity of the…
A: Given that The current density of the silver wire (J) = 3.20×106A/m2…
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- An aluminum wire having a cross-sectional area equal to 2.00 x 106 m2 carries a current of 3.50 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. .00001822 XWhat is the magnitude of the current density across A1? Is the current at A2 larger, smaller, or the same? Is the current density at A2 larger, smaller, or the same? Assume A2 = 2A1.The figure gives the electric potential V(x) along a copper wire carrying uniform current, from a point of higher potential V, = 8.00 µV at x = 0 to a point of zero potential at x, = 2.60 m. The wire has a radius of 2.10 mm, and copper has a resistivity of 1.69 x 10-8 0-m. What is the current in the wire? V. x (m) Number i Units (A) A
- Given 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 CThe resistance R of a conductor depends on its shape and physical dimensions and a property of the material called the resistivity p What does the resistivity of a material depend upon? Assuming that the resistivity of copper is a quarter of that of aluminium and that the density of copper is three times that of aluminimium, find the ratio of the masses of copper and aluminium wires with the same length and the same resistance but with different cross - sectional areas .An aluminum wire having a cross-sectional area equal to 2.90 x 10-6 m² carries a current of 4.50 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. mm/s Need Help? Read It
- Current and Resistance Problem 17: An unknown wire in a circuit has a circular cross-section with diameter 2.5 mm. It carries a current of 8.8 mA. Part (a) What is the current density, in milliamperes per square centimeter, in this wire? Part (b) If you assume the drift velocity in this wire is 1 × 10-2 cm/s, what is the density of charge carriers per cubic centimeter? Part (c) If the conductivity in this wire is 1.5 × 106 Ω-1 m-1, what is the average time between collisions, in nanoseconds?QUESTION 7 A copper wire has a circular cross section with a diameter of 8.11 mm. If the wire carries a current of 1.45 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 and charge of electron to be q = 1.61 × 10-19 X C). Area of a circle = pir^2 Submit your answer in exponential form with two decimal places. You are required to show your work in the file you submit.