M4.25 (Sl units) What is the resistance R of a length of copper wire whose length 10 m and whosediameter 0.30 mm? Use Table 4.3 of the book for reference. Round to the nearest thousandth of anohm () Table 4.3 Resistivity of selected materials.Resistivity,Resistivity,Material(2-in)2-n-In)MaterialConductors10-10(10-10Conductars, continued(6.7x 10(27 x 10(4.5 x 10-)(2.4 x 10(2000x 10(10-10(0.4 x 10)(10-10(0.4 x 10(40 x 104)Aluminum2.8x 10(1.x 1017x 10Steel, low CAluminum alloys4.0x 1065x 101.7x 1070x 101.5x 106.0x 105000 x 101o 10(1.6x 10(26x 10Steel. stainlessCast ironTinCopper(0.67x 10)Zine24x 109.5x 1021x 104.5x 10(0.95 x 10)(3.7x 10)(8.1x 10)(1.8x 10)(2.7x 10(0.63 x 10CarbonGoldSemiconductorsIron1.0x 10SiliconLead10-10InsulatorsMagnesium6.9x 1016x 10Natural rubberL0x 102NickelPolyethylene100 x 1012SilverCompiled from various standaValue of resistiviay varies with aloy coopositice.Walue of resistivity is appeusitsnces

Calculate the cross-sectional area of the circular material.

Answered: M4.25 (Sl units) What is the resistance…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A rectangular polypropylene [E = 6,200 MPa] bar (1) is connected to a rectangular nylon [E = 1,400 MPa] bar (2) at flange B. The assembly (shown in the figure) is connected to rigid supports at A and C. Bar (1) has a cross-sectional area of A₁ = 1070 mm² and a length of L₁ = 1380 mm. Bar (2) has a cross-sectional area of A₂ = 2730 mm² and a length of L₂ = 510 mm. After two loads of P = 2.6 kN are applied to flange B, determine: (a) the forces in bars (1) and (2). (b) the deflection of flange B. A L₁ (1) P B L2 C
An aluminum [E = 10,000 ksi] control rod with a circular cross section must not stretch more than 0.22 in. when the tension in the rod is 2000 lb. If the diameter of the rod is 0.374 in., determine the maximum length of the rod. 156.2 in. O 114.4 in. O 120.8 in. O 163.3 in. O 102.4 in.
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A rectangular polypropylene [E = 6.200 MPa] bar (1) is connected to a rectangular nylon [E = 1,400 MPa] bar (2) at flange B. The assembly (shown in the figure) is connected to rigid supports at A and C. Bar (1) has a cross-sectional area of A₁ = 920 mm² and a length of L₁ = 1220 mm. Bar (2) has a cross-sectional area of A₂ = 2630 mm² and a length of L₂ = 570 mm. After two loads of P = 3.8 kN are applied to flange B, determine: (a) the forces in bars (1) and (2). (b) the deflection of flange B. (a) F₁ = F₂ = (b) UB = i i i A kN KN mm L₁ (1) P B L₂ (2)
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Q-A solid 75-mm-diameter Aluminum [E = 80 GPa and 0.3 Poisson ratio] shaft that is 1.25-m long extends through and is completely bonded to a hollow brass |G = 25 GPa] tube, as shown in Figure. Brass tube (1) has an outside diameter of 10 cm, an inside diameter of 75 mm, and a length of 0.75 m. Both the aluminum shaft and the brass tube are securely attached to the wall support at A. When the two torques shown are applied to the composite shaft, determine: (a) The maximum shear stress magnitude in brass tube (1) and Aluminum shaft segment (2) and (3). (b) The rotation angle of joint B and the rotation angle of end c. (1) 30 KN m 12 kN-m Figure 0.5 m
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