جاء في الامتحان H. W3 A steel wire has a radius of (2mm) and a conductivity of 2x 10° S/m. The steel wire has an aluminum (-3.8 x 107 S/m) coating of (2mm) thickness. Let the total current carried by this hybrid conductor be (80 A de). Find (Jst, JAI, Est, EAI, and v)

Q: A ring of ferromagnetic material has a rectangular section. The inner diameter is 15 cm. The outer…

A: We have given the following problem A ring of ferromagnetic material has a rectangular section. The…

Q: 1. Give what is ask A. The resistance of the wire increases from 40 Q at 10°C to 48.25 Q at 60°C.…

A: According to the given question, it is required ti determine the answer of the below given…

Q: Q35. An infinitely long conductor is bent into an L shape as shown in Figure. If a direct current of…

A: Given I = 3 A H (2, 2, 0)

Q: 5. A single-core 66 kV cable has a conductor diameter of 2 cm and a sheath of inside diameter 5-3…

A: Given,V=66 kVThe diameters are,D1 =2cmD2=5.3 cmThe dielectric constants are,k1=4.5k2=3.6

Q: An infinitely long conductor is bent into an L shape as shown in Figure. If a direct current of 4 A…

A: The given diagram for the for the infinite long conductor    H=Hx+HyH=2HxTherefore,The magnetic…

Q: 3. A copper conductor 30 cm long, has an inner diameter of 0.8 cm and an outer diameter of 1.2 cm.…

A: In this question we will find copper resistance. ...

Q: Table A.3 lists a 4/0 copper conductor with 12 strands and having a diameter of 0.3373 cm. a) Find…

A: Answer (a) From the given table  Resistance at 50-degree is 0.302 Ωmile consider increment of 2%…

Q: Q4: For a Si conductor of length 5um doped n-type at 1015cm-3. Calculate the current density for an…

A: Given Data: q = 1.6 * 10-19 C un = 1500 n = 1015

Q: 4. The value of a at OdegC of a conductor is 1/236 per ind the value of a 18degC.

A:

Q: Q35. An infinitely long conductor is bent into an L shape as shown in Figure. If a direct current of…

A: Note: We are authorized to answer one question at a time, since you have not mentioned which…

Q: A2 TW conductor is instaled in a location where the ambient mperature is expected to be 102 F. The…

A:

Q: 50 Hz, 11 kV Consider a three-core, three-phase, cable whose conductors are denoted as R, Y and B in…

A: Given a three core, 3-φ, 50 Hz, 11 kV cable with, The inter-phase capacitance between each pair of…

Q: It is found that the armature of a coil of wire increases from 50 ohms at 20°C to 60 ohms at 56°C.…

A: The solution can be achieved as follows.

Q: Eddy currents can be induced only in metals that are not ferromagnetic, for example, copper and…

A: In this question,  We need to choose the given Statment is true or false?  Eddy currents can be…

Q: Induced voltage acts like a resistance to hinder the flow of current through an inductor.  True or…

A: Solution: (a) Let,s assume an inductor connected to a voltage source, The current flowing through…

Dielectric Breakdown

A dielectric is a material with low electrical conductivity and so is classified as an insulator. Dielectric materials are used to block the flow of electricity through them, allowing them to behave as an insulators. They can also be used to store electric charge or improve capacitance.Dielectrics have no free electrons for conduction because electrons are tightly bound to the nucleus. Because dielectrics contain a small number of electrons for electrical conductivity, they have a dipole. The two primary roles of dielectrics in electrical devices are insulation and electrical energy storage. An electric field polarizes the dielectric, and the polarization of the molecules allows dielectric materials to store charge.