Please make sure that the answer is correct
Please make sure that the answer is correct Q15) This ring has a cross-sectional area of...
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.
6) Figure Q4(b) shows a coils of 200 turns. The coil is uniformly wound around a wooden ring with a mean circumference of 600mm and cross-section area of 500mm%. The current flowing into the call is 4A. (Permeability of free space fle = 4ex 10' Hm'. Calculate: L. the magnetic field strength (2 marks) flux density (1 marks) total flux (1 marks) turn I meter Figure Q4 (b) A magnetic circuit made of cast steel is arranged as in Figure...
b) A portion of a solenoid is shown as in Figure Q3(b). The magnetic circuit comprises of cast iron yoke, sheet steel plunger, cast steel plunger and air gaps. The yoke and plunger have a cross section area of 4.8x10 m´and 4.5x10m respectively. A coil is wound on the center of the yoke. The effective length of the cast iron yake, sheet steel plunger and cast steel plunger are la = 0.25 m; 4 = 0.12 m and l =...
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.
QUESTION 2 a) Given a magnetic circuit as shown in Figure Q2 where its core is cast steel. The center limb has a cross-sectional area of 800mm2 and the other side limbs have a cross sectional area of 500mm2. The effective air gap length, lac is Imm, core length, loc= 150mm . ladb = laeb = 340mm . A coil of 400 turns is wound on the center limb. Neglect any magnetic leakage and fringing effect. i. Draw the equivalent...
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:...
Please answer all parts of the question. Thank you.
Consider the iron structure in the figure below. Assume u = 00 in the iron. The struc- ture has uniform cross sectional area of A = 1 cm2 in each leg. All air gaps have equal length of g 1 mm. Neglect fringing at the air gaps. Let each coil carry a current of i The directions of the current are as shown in the figure. Assume each coil has N...
2. The magnetic circuit of Fig. 1 consists of rings of magnetic material in a stack of height h. The rings have inner radius Ri and outer radius Ro. Assume that the iron is of infinite permeability (μ → x) and neglect the effects of magnetic leakage and fringing Ri N turns For Ri-3.2 cm, Roー4.1 cm, ћ-1.8 cm, g = 0.15 cm, N-72 turns, calculate a. The mean core length le and the core corss-sectional area Ac. b. The...
The A992 steel rod is
subjected to the loading shown. If the cross-sectional area of the
rod is 100 mm2. Neglect the size of the couplings at B and C. The
elastic modulus and yield stress of A992 steel is 200 GPa and 345
MPa respectively. Determine the displacement of B and A with
respect to point D. (Preserve 2 significant digits after the
decimal point.)
QUESTION 1 The 1992 steel rod is subjected to the loading shown. If the...