A cast-steel ring has a mean diameter of 160mm and a cross sectional area of 300mm2. Calculate:
a) The m.m.f to produce a flux of 400x10-6Wb;
b) The corresponding values of the reluctance of the ring and the relative permeability.
A cast-steel ring has a mean diameter of 160mm and a cross sectional area of 300mm2....
5. An iron ring with a cross-sectional area of 3 cm2 and a mean circumference of 75 cm is wound with 250 turns wire carrying a current of 0.3 A. The relative permeability of the ring is 7500. Calculate the flux established in the ring.
Magnetism and electromagnetism
(9 Marks) Q2. A steel ring has a mean diameter of 20 cm and a cross-section of 25 car and a radial air gap 0.8 mm cut across it. When excited by a current of l A through a coil of 1000 turns wound on the ring core, it produces an air gap flux of /mWb. Calculate: (i) the total reluctance of the magnetic circuit. (ii) the relative permeability of steel. (4 Marks)
Please make sure that the answer is correct
Q15) This ring has a cross-sectional area of 15 cm' as shown in Fig. 3. Find the ampere-turns required to produce a flux of 9x 10 Wb. u, of cast steel and cast iron are 700 and 156 respectively. Neglect fringing and leakage effects. (3 marks) Cast Iron 0.2 mm 21 Cms 0.2 mm Cast Steel
15 marks] B. A toroidal core with a mean diameter of 200 mm and a cross-sectional area of 800 mm has an air gap of length 1.1 mm cut in it Fringing and leakage of flux around the air gap may be neglected (i) Determine the current required in a coil of 1100 turns to produce a flux density of 1 T The relative permeability , of the core material (iron) may be assumed to be 3000 for this level...
can i get the right solution please
Question 1: (25 marks) A ring of steel has an external diameter of 24cm and a square cross section of 3cm by 3cm, as she m, as shown in Figure 1. A gap of 3mm exists on the ring. A copper bar of 18cm x 3cm x 3cm is fitted inside Titted inside and across the ring with negligible gap. Account for fringing by using the effective area of the air approximated by:...
Chapter 2 Question A toroidal core of relative permeability 1000 has a mean diameter of 300 mm and a cross sectional area of 6 cm". The core is wound with 1000 turns. If a dc current establishes a flux in the core of 6 x 10-4 Webers, determine: (a) (1) the magnetic flux density. (ii) the inductance. (iii) the magnetic intensity (H). (iv) the stored energy.
Find the cross sectional area of the circular hollow steel section. The mean (average) radius is 0.07m and has a thickness of 0.0035m.
Calculate the Cross sectional area of a pipe that has a diameter of .017 meters please show work thanks
Assume that we have an air-core toroid with 500 turns, a cross-sectional area of 6 cm2, a mean radius of 15 cm, and a coil current of 4 A. As we already know, the magnetic field is confined to the interior of the toroid, and if we consider the closed path of our magnetic circuit along the mean radius. Find: a) the mmf in the core b) the core reluctance c) the magnetic flux d) the B-field e) the H-field
Four steel rods each with a cross-sectional area of 1in 2 are embedded in a 5-in diameter light aggregate concrete cylinder. The steel has a yield strength of 36000 psi and a modulus of elasticity of 30x10n6 psi. Assume a very strong interface between the steel and the concrete causes them to experience identical deflections. A rigid plate is placed over both ends of the cylinder and a compressive axial force of 100,000 lb is applied. The stress (psi) induced...