Using Kirchhoff's rules, find the following. (E, = 71.0 V, E, = 61.0 V, and E, = 79.0 V.) 4.00 kN d E, |E, R3 |E, R2 3.00 kN 2.00 kN a R1 (a) the current in each resistor shown in the figure above 3.043 Your incorrect answer may have resulted from roundoff error. Make sure you keep extra significant figures in intermediate steps of IR2 %3D (b) the potential difference between points c and f magnitude of potential difference point at higher potential -Select---

Using Kirchhoff's rules, find the following. (E, = 71.0 V, E, = 61.0 V, and E, = 79.0 V.) 4.00 kN d E, |E, R3 |E, R2 3.00 kN 2.00 kN a R1 (a) the current in each resistor shown in the figure above 3.043 Your incorrect answer may have resulted from roundoff error. Make sure you keep extra significant figures in intermediate steps of IR2 %3D (b) the potential difference between points c and f magnitude of potential difference point at higher potential -Select---

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 42P: What current flows through a 2.54-cm-diameter rod of Pure silicon that is 20.0 cm long, when 1.00103...

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What current flows through a 2.54-cm-diameter rod of Pure silicon that is 20.0 cm long, when 1.00103 V is applied to it? (Such a rod may be used to make nuclear- particle detectors, for example.)
What current flows through a 2.74 cm diameter rod of pure silicon that is 25.0 cm long, when 1000 V is applied to it? (Such a rod may be used to make nuclear particle detectors, for example.) The resistivity of pure silicon is 2.30 103 Ω · m. _____A
A wire 3.77 m long and 6.81 mm in diameter has a resistance of 20.6 mΩ. A potential difference of 26.6 V is applied between the ends. What is the magnitude of the current density? Current in the wire is 1291.26 A Answer isnt 11284400, 3547400000,
What is the current in a wire in which 3.62x1020 electrons pass a single point every 8.79 seconds? Report your answer with three significant digits. (e = 1.602x10-19 C)
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A copper wire is r = 2.19 cm in radius and 2.6 m in length, has a resistivity of 1.72x10^-8 Ω m, and carries a current of 3.23 A. The wire has a charge carrier density of 8.49x10^28 electrons/m3. What is the electric potential difference, V in volts, across the wire? Note: Express your answer to three significant figures. Use scientific notation
1. If electricity costs 15 Bz per kilowatt-hour, how much does it cost to operate a 220 V Refrigerator that draws 1.3 A of current for 24 hours per day for a month of thirty days? The Total Electrical energy consumed for a month = Answer kwh and the Total cost of electricity consumption = Answer riyal 2. If current of I = 2.500 A flows through a wire, How many number of electrons flow through a point in a wire in 2.00 s ? Number of electrons flow through a point in wire in 2.00 s = Answer electrons
A 620-W heating coil designed to operate from 110 V is made of Nichrome wire 0.240 mm in diameter. (Assume ρ = 1.50 10-6 Ω · m, and α = 4.000 10-4(°C)−1 for Nichrome.) a) Assuming the resistivity of the Nichrome remains constant at its 20.0°C value, find the length of wire used. (b) Now consider the variation of resistivity with temperature. What power is delivered to the coil of part (a) when it is warmed to 1 200°C?
How can I get the solutions and answer to this problem? A silver wire 2.6 mm in diameter transfers a charge of 420 C in 80 minutes. Silver contains 5.8 x 1024 free electrons per cubic meter. What is the current in the wire?
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The Iceberg Kid, infamous for imposing a deep freeze on whoever disagrees with him, discovers that in his advanced teenaged years his hands constantly feel chilled. As he is a cool physics student, the Iceberg Kid quickly calculates the resistance of the resistor needed to warm his hands. Given that 185 J185 J of thermal energy is generated by the resistor during 6.19 s6.19 s of operation while connected to a 12.0 V12.0 V battery, find the correct value of this resistance (and avoid a cold, cold fate).
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