*8.12 A conducting triangular loop carrying a current of 2A is located close to an infinitely long, straight conductor with a current of 5 A, as shown in Figure 8.40. Calculate (a) the force on side 1 of the trian- gular loop and (b) the total force on the loop. 5AA 2 m * 2 A 2 m 4 m Figure 8.40 For Problem 8.12.
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- A cylindrical solenoid 49 cm long with a radius of 7 mm has 325 tightly-wound turns of wire uniformly distributed along its length (see the figure). Around the middle of the solenoid is a two-turn rectangular loop 3 cm by 2 cm made of resistive wire having a resistance of 135 ohms. One microsecond after connecting the loose wire to the battery to form a series circuit with the battery and a 20 resistor, what is the magnitude of the current in the rectangular loop and its direction (clockwise or counter-clockwise in the diagram)? (The battery has an emf of 9 V.)A ferromagnetic core with a relative permeability of 1500 is shown in the Figure. The dimensions are shown in the diagram, and the depth of the core is 5cm. The air gaps on the left and right sides of the core are 0.050 and 0.070 cm, respectively. Because of the fringing effects, the effective area of the air gaps is 5 percent larger than their physical size. If there are 300 turns in the coil wrapped around the center leg of the core and if the current in the coil is 1.0 A, what are the flux values for the left, center, and right legs of the core? What is the magnetic field in each air gap? |7 cm 7 cm 7 cm to 30 cm 30 cm 7 cm 30 cm 0.07 cm 300 turns 0.05 cm 7 cm Core depth = 5 cmExplane for me how to solve the problem by the same steps as given , plese help
- The magnetic structure of Figure Q7 1 has a rerromagnetic core that can be treated as infinitely permeable Air-gap fringing Is negligible Let N= 10 turns, A=02 m and gap length is 0 = 5 x 10 m. The coil is excited by a sinusoidal voltage source that establishes a flux given by p(t) = 0.25stn20t Wb. The resistance of the coil can be neglected Determine the supply voltage, ), the current, (t) and the inductance of the coil, L. %3D Area, A ŁAir Vst) Figure Q7.1. Solutions insert your solutions in the spaces provided below. Give your numerical values to the nearest whole number unless where stated otherwise. Veft) = Volts t) = A. L= H (give your answer correct to 3 decimal places).A ring of ferromagnetic material has a rectangular section. The inner diameter is 15 cm.The outer diameter is 24 cm. And the thickness is 5 cm. There is a coil of 500 turns wound onthe ring. When the coil has a current of 10 A, the flux in the core is 0.0007 Wb. Theaverage length of the ring is Ln=0.66m Determine:a) The magnetomotive force.b) The intensity of the magnetic field and the flux density.c) Reluctance, permeability and relative permeability.Question 1 A ferromagnetic core with a relative permeability of 1500 is shown in Figure 2. The dimensions are as shown in the diagram, and the depth of the core is 7 cm. The air gaps on the left and right sides of the core are 0.070 and 0.020 cm, respectively. Because of fringing effects, the effective area of the air gaps is 5 percent larger than their physical size. If there are 400 turns in the coil wrapped around the center leg of the core and if the current in the coil is 1.0 A, what is a) the flux in each of the left, center, and right legs of the core? b) the flux density in each air gap? 7 cm ст ст 30 cm 30 cm 7 cm 400 turns 0.05 cm 30 cm 0.07 cm 7 cm Core depth = 7 cm Figure 2
- Pb-7d.8-9 onlyconstant. 15 cm core depth = 15 cm Problem 2 A ferromagnetic core with a relative permeability of 2000 is shown in Figure. The dimensions are as shown in the diagram, and the depth of the core is 7 cm. The air gaps on the left and right sides of the core are 0.050 and 0.070 cm, respectively. If there are 300 turns in the coil wrapped around the center leg of the core and if the current in the coil is 1.0 A, what is the flux in each of the left, center, and right legs of the core? What is the flux density in each air gap? |7 cm 30 cm 7 cm 7 cm 30 cm 7 cm 30 cm -0,05 cm 300 turns 0.07 cm 7 cm 1|Page
- Figure 1 shows a ferromagnetic core with a relative permeability of 1850, the depth of the core is 10 cm. The air gap on the core is 0.2 cm with effective area 5 % larger than their physical size due to fringing effects. Given the number of turns N = 500 and current i = 2 x, where x is the last digit of your student ID (example: EEE1705590, then i = 20 A): (a) Find the total reluctance of the core and air gap. [CLO1-PL01:C2] (b) Find the flux density of the air gap. [CLO1-PLO1:C2] 13 cm 23 cm 9 cm 5.6 сm Air gap 31 cm N turns 7 cm Figure 17. A coil having a resistance of 20 ohms and an inductance of 0.75 henry is connected in series with a 30-ohm resistor and to a 120-volt d-c source. A switch across the series resistor is then closed, and the circuit is assumed to be in a steady-state condition. At the instant the switch is opened, what will be the rate of current change and the power delivered by the magnetic field.A squara magnotic core has e moan path length 55:m and x-sactional eres of 150zm*A 200 turns coil of wire is wrapped around one leg of the core. The core is made of the materia' having relative permeability 3980. Find • Fow much current is required to produce 0.012 Wb of flux in the cere • Celculate the reluctance and megnetomotive farce.