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Mathematics Volume of Hollow Cylinder A Thin Wire H. Question A Thin Wire Has a Length of 21. 7 c m and Radius 0. 46 m m. Calculate the Volume of the Wire To Correct Significant Figure. Solution Given, Length of wire ( l) = 21. 7 c m and radius ( r) = 0. 46 m m = 0. 046 c m [ A s 1 m m = 0. 1 c m]
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Answer. As R → ∞, Equation 1.6.14 reduces to the field of an infinite plane, which is a flat sheet whose area is much, much greater than its thickness, and also much, much greater than the distance at which the field is to be calculated: →E = lim R → ∞ 1 4πϵ0(2πσ − 2πσz √R2 + z2)ˆk = σ 2ϵ0ˆk.
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November 15, 2016 by John Dunn Comments 6 Advertisement A = pi*R² Most wire or string is made with a circular cross section of some particular radius and diameter. The area of that cross section is the well known A = pi*R² which is colloquially pronounced as "pie are squared."
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66 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be:
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There is no change in volume of a wire due to change in its length of stretching. The Poisson's ratio of the material of the wire is: A 0.5 B - 0.50 C 0.25 D - 0.25 Solution Verified by Toppr The correct option is A 0.5 Volume of a wire of radius r and length l is, V = πr2l ∴ dV = 2πrldr+πr2dl 0 = 2πrldr+πr2dl (dv = 0, as volume is unchanged)
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Part (A), "Box Volume Calculations," defines the volume of a wiring enclosure or box. The calculations must take into account the volume of the box as well as the volume of any extensions such as domed covers or extension rings.
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Volume is the quantity of three-dimensional space enclosed by a closed surface and it is measured in cubic units. Given here is the formula to calculate the volume of a conductor (wire or cable) in a transformer line. The volume of a conductor formula uses the parameters area and length of the conductor to determine the volume.
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Example 6.2.1 6.2. 1: Current and current density in a wire of circular cross-section. Figure 6.2.1 6.2. 1 shows a straight wire having cross-sectional radius a = 3 a = 3 mm. A battery is connected across the two ends of the wire resulting in a volume current density J = z^8 J = z ^ 8 A/m 2 2, which is uniform throughout the wire.
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Answer Verified 296.9k + views Hint: It is said that a copper rod is converted into a wire. So the volume of the copper rod and wire will be the same. The volume of these is similar to that of a cylinder. Find the volume of copper rod and equate it to the volume of wire, to get the diameter of wire. Complete step-by-step answer:
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Electric Wire Resistance. Cross-Section Area of Bunched Wire. The cross-section area of bunched wires can be calculated as. A = n d π / 4. = 0.7854 n d. n = number of wires. d = single wire diameter (mm, in) Cross-Section Area Calculator - Multiple Wires. Diameter of each wire (mm)
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The calculator is designed to accept the total line voltage and current of the combined three cables. The equation for the area of a single wire is modified to: A = \frac {\sqrt 3 I \varrho L} {V} A = V 3I ϱL. The factor of \sqrt 3 3 is needed to convert between the system's phase current and line current.
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In general, volume = cross-sectional area × length, so: weight = density × cross-sectional area × length
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This electrical box fill calculator (or in short, box fill calculator) will help you determine the total box fill volumes you will need to meet so that each of your electrical utility boxes will pass the National Electrical Code®. In this calculator, you will learn: The importance of electrical box fill calculation;
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Figure 20.1.3 20.1. 3: Current I I is the rate at which charge moves through an area A A, such as the cross-section of a wire. Conventional current is defined to move in the direction of the electric field. (a) Positive charges move in the direction of the electric field and the same direction as conventional current.
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volume=1/3 × π × 4(0.2 2 + 0.2 × 1.5 + 1.5 2) = 10.849 in 3. Ellipsoid. An ellipsoid is the three-dimensional counterpart of an ellipse, and is a surface that can be described as the deformation of a sphere through scaling of directional elements. The center of an ellipsoid is the point at which three pairwise perpendicular axes of symmetry.
