Two copper wires A and B have the same length and are connected across the same battery. If Rg = 9R4, determine the following. HINT Apply Ohm's law and the relationship between resistivity and resistance. Click the hint button agai (a) the ratio of their cross-sectional areas Ag AA (b) the ratio of their resistivities PB = РА (c) the ratio of the currents in each wire IA .........:

Two copper wires A and B have the same length and are connected across the same battery. If Rg = 9R4, determine the following. HINT Apply Ohm's law and the relationship between resistivity and resistance. Click the hint button agai (a) the ratio of their cross-sectional areas Ag AA (b) the ratio of their resistivities PB = РА (c) the ratio of the currents in each wire IA .........:

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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Two copper wires A and B have the same length and are connected across the same battery. If R. = 4R, determine the following. HINT (a) the ratio of their cross-sectional areas Ag AA (b) the ratio of their resistivities PB PA (c) the ratio of the currents in each wire IB IA
Let's say you have a 20 cm long silicon wire, with a diameter of 4 cm. What current flows through this wire if a 1000 V potential difference is applied to the two ends? Please enter your answer in the unit of mA. You can use 2300 Ohm.m for the resistivity of silicon.
a) . The equivalent resistant seen by the source. b) The total current I. c) . . The voltage across the 2K resistor. 1 kN 1 kΩ> 4 kN 20V 3 kN 2 kN 6.6 kN
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An Iron wire at 0 Celcius has resistivity Ro. At which temperature the resistiv- ity of this wire will be 1.2R9. You can find the value temperature coefficients of resistivity from Table 25.2 from your book. Explain the physical mechanism of rising resistivity by the rising temperature.
= 250 [12]. Andami namang resistors! Consider the resistor network shown in the figure, with R₁ R₂ = 1.0 [kN], R3 = 1.2 [kN], R4 = 1.0 [kN], and R5 = 1.5 [k]. The source voltage & is 24 [V], and has no internal resistance. What is the current passing through R₁? E R₁ www www R₂ O A. 34 [mA] O B. 54 [mA] O C. 96 [mA] O D. 104 [mA] www R3 R4 R5
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Two resistors of resistance 230 O and 340 O are connected in series (one after the other). A potential difference of 20 V is applied between the ends of the chain. a)What is the total resistance of the circuit (in O)? Give your answer as a whole number. b)Calculate the current flowing through the circuit (in A). Gve your answer to 3 d.p. and use this value to that degree of accuracy, in subsequent calculations, if needed. c)Calculate the potential difference across the 230 O resistance. Give your answer in volts to 2 d.p..
moodle.nct.edu.om/m arning Portal Courses Reports e-Services - Academic Departments ETC CIMS - äö pio Moving Forward purses / PHYS1100 / Homework No.2/ Homework No.2 An iron wire has a diameter 3.05 mm and resistivity 9.71x 10-8 Qm. What will be the length of this wire to make a resistance of 302. What will be the new resistance, if the radius is doubled? (a) Length of the wire (in m) = (b) Resistance of the wire (in )N = Next page Upload your Homework 2 Answer - Jump to.. pad - Quiz-2 OneDrive CH6VZR403C NG 4) G E DELL
empt=82392&cmid%3D91618&page%3=2 What is the resistance (in units of 2) of a wire made of a material with a resistivity of 3.2 x 10-82. m, if its length is 65.1 m and its diameter is 0.50 mm? Select one: OA. 10.61 OB. 36.65 OC. 4.10 OD. 2.65 OE. 23.63 Next pag 8:581 ENG
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