A wire has a uniform cross sectional area of \(1\,cm^{2}\) and a length of \(1\,m\). When the potential difference across the wire is increased by \(16\,V\), the current increases by \(2\,A\). What is the resistivity of the wire? 相关知识点: 试题来源: 解析 \(8*10...
A coil of wire with 35turns has a cross-sectional area of 0.03 m2.A magnetic field of 1.2T passes through the coil.What is the total magnetic flux passing through the coil?多少的Tm^2 相关知识点: 试题来源: 解析 35圈导线,横截面0.03m2,磁感应强度1.2T,磁通量为:35*0.03*1.2=1.26 ...
A method and apparatus is provided for electromagnetically testing an elongate object such as a wire rope for cross-sectional area variations. The elongate object is magnetized over adjacent sections in opposing directions along a longitudinal axis of the elongate object. Variations in axial magnetic ...
Question: 4) A wire with cross-sectional diameter of 2 mm is pulled with constant velocity of 10 cm/s along the axis of the pipe having cross-sectional diameter of 2 cm. This pipe is filled with the liquid having viscosity of 0.01 Poise...
An iron wire has a cross-sectional area equal to1.10×10-5m2.Carry out the following steps to determine the drift speed of the conduction electrons in the wire if it carries a current of28.0A. (a)How manv kilograms are there in1.00...
When crimping a 17 AWG power cable onsite, use a pair of pliers with a cross-sectional area of 1 mm² to 1.5 mm². When crimping a 21 AWG power cable onsite, use a pair of pliers with a diameter of 0.5 mm², or select the corresponding pliers according to the actual situation...
If the diameter of a wire (conductor) is dimidiated , then its resistance: A Remains unchangable B is diminiated C Becomes two times greater D Becomes 4 times greater Homework Equations R=constant*length/Surface The Attempt at a Solution Cross sectional area=pi r^2=pi (D/2)^2=piD^2...
Learn various ways to determine the cross-sectional area of a wire and make sure that the cables can withstand the current.
A magnetic method to measure metallic cross-sectional area of corroded steel wire : Proceedings of the 12th World Conference on Non-Destructive Testing, Amsterdam (Netherlands), 23–28 Apr. 1989, Vol. 2, pp. 1270–1272. Edited by J. Boogaard and G.M. van Dijk, Elsevier, 1989 K. Hanasak...
aAt suspension towers the earth conductor suspension clamp shall be securely bonded to the tower steelwork by means of a multistrand aluminum flexible bond wire having a cross-sectional area of not less than the earth conductor and covered with a polymer sheath. The bond, which shall be flexible...