For 1 ≥ 0, q= (4.0 x 10-4)(1-e-250) (C). Obtain the current at t = 3 ms. Ans. 47.2 mA
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Q: Compute the voltage drop along a 22-mm length of the household no. 14 copper wire (used in 15-A…
A: R=ρLπd2/4=4ρLπd2=41.68×10-8Ω⋅m22 mm10-3 m1 mmπ1.628 mm10-3 m1 mm2=1.78×10-4 ohm
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A: Resistances are as follows: R1=14 ohm, R2=11 ohm and R3=12 ohm Current through R1=I1=1.25 A Current…
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Q: Section 2 - Does resistance depend on length? 1. (1) Compare the resistance for coils A and C 2. (2)…
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Q: Due to the nature of this problem, do not use rounded intermediate values in your…
A: The values of currents are as follows,I1 = 0.485900217amps,I2 = -0.5075922 amps,I3 = 0.993492417…
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Q: please answer the following A) A lightning stroke lasts 0.02s and involves a flow of 298 C. What is…
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A: Given, Current I=2.5 A Voltage V=240 V
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Q: Find the radius of the wire of length 25 m needed to prepare a coil of resistance 25 ohm…
A: Given data: Length (L) = 25 m Resistance (R) = 25 Ω Resistivity (ρ) = 3.142 × 10-7 Ω.m Required:…
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Q: Calculate the equivalent resistance of the displayed circuit. b) Calculate the intensity of the…
A: Answer A) 4.5 ohm B) 3 A
Q: Q1\Compute the resistance of the given material whose resistivity is 3.333 m; area of cross-section…
A: A material of Resistivity = 3.333 Area of cross-section = 25 cm2 Length = 15 cmResistance =?
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Q: A wire with radius 0.225 mm,resistance 14.6 Ω, and length 1.55 m,draws a current of 8.2 A. Find…
A: Approach to solving the question:Please see attached photos for detailed solutions. Thank you.…
Q: A current density of 4.50 x 10-13 A/m² exists in the atmosphere at a location where the electric…
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- The electrical resistance in ohms of a certain thermometer varies with temperature according to the approximate law :R = Ro [1 + α (T – To )]The resistance is 101.6 Ω at the triple-point of water 273.16 K, and 165.5 Ω at the normal melting point of lead (600.5 K). What is the temperature when the resistance is 123.4 Ω?What color code corresponds to a resistance of 234x10 5 10% with a temperature coefficient of resistance equal to 25x10 -6 /C o ?The 18 gauge copper wire has a cross-sectional areaof 8.17 * 10^-7 m2. It carries a current of 1.67 A. Find the electricfield magnitude in the wire
- 1.3 The current at the terminals of the element in Fig. 1.5 is i = 0, t 0. Calculate the total charge (in microcoulombs) entering the element at its upper terminal. Answer: 4000 µC.In a given fluid, positive ions, each with 1 excess protons, move to the right at a steady rate of 1.9 × 1019 ions per minute and negative ions, each with 4 excess electrons, move to the left at a rate of 4.8 × 1019 ions per minute. Determine the current directed to the right. Use the fundamental unit of charge to be C. Determine the current (in amperes) to the right. Express Answer into FOUR decimal places.If R=Ro[1+ a(T - To)], find: (a) the temperature coefficient of resistivity, a, in terms of R, Ro, T, and To. (b) the temperature coefficient of resistivity for a resistor with resistances of 8.2 at 33°C and 9.35 at 70°C.
- The resistivity of copper 2*10⁸m.work out the resistance of copper wire of 1mm² cross sectional area and 3m long?QI\ Compute the resistivity of the given material whose resistance is 2 ; area of cross-section and length are 25cm² and 15 cm respectively?A steady 4.38-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 1.17 x 1028 electrons per cubic meter. The charge of the electron is 1.60 x 10-19C.
- a) Calculate the intensity of electric current passing through the resistance of 4ohms. b) Calculate the voltage at the resistance of 2 ohms.Problem 6: UP 9.41 Find the ratio of the diameter of aluminum to copper wire, if they have the same resistance per unit length (as they might in household wiring).Find the resistancefin the unit of Ohm) of a Nichrome rod of diameter d=3 mm and has a length L-9m (resistivity of Nichrome, P1.8x 10am a. 0.002291 b. 0.04786 c. 5.249-10-6 d. 0.004582 e. None