The flux through a toroidal magnetic material is 6 µWb, and the magnetic field intensity is 12 A/m. The length of the magnetic path is 0.6 m, and it's effective cross-sectional area is 1.5x 10¯4m². Determine the coil's mmf in Amp Give your answers correct to 1 decimal places. Answer:
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- A magnetic circuit has a length of 100 cm and cross-sectional area of 5 square cm. The total flux is 10 x 104 webers. The coil has 100 turns and current of 4 amperes. What is the magnetic strength? a. 500 AT/m b. 400 AT/m c. 350 AT/m d. 450 AT/mAn air core toroidal coil has 120 turns, the length is 12 cm and 12 sq. cm in area What is the current required to set up a flux of 1.2x10° weber. What is the current?A coll consist of 750 turns. A current of 10A in the coil gives a rise to a magnetic flux of 1200 Wb. Determine the inductance of the coil
- A rectangular coil of wire has a length of 3 cm and a width of 4 cm. It is in a 0.004 T magnetic field. What is the magnetic flux through the coil if the face of the coil is parallel to the B-field lines? What is the flux if the angle between the face of the coil and the magnetic field is 75°?A magnetic coil produces 100,000 maxwell with 2000 turns and with a current of a 2A. The current is cut-off and the flux collapse in 0.01 sec. What is the average voltage that will appear across the coil?Consider a coil as Figure 10 turns, placed in a magnetic field B= (100 x2 cos 103t) az T and R=10000 Determine the current in the circuit. The units of length are in m R -0.1 + Vemf 0.1 -0.1 B 0.1
- 3- A magnetic core with an air gap is shown in below Figure. The depth of the core is 3 cm, the length of the air gap in the core is 4 cm, and the number of turns on the coil is 100. How much current is required to produce total flux of 0.00052 Weber? (H= 2000, Ho=4.n107). 6 cm 20 cm N = 100 4 cm = lg 6 cm 6 cm 18 cm 12 cm 18 cm 6 ст Depth = 3 cmA coil of 1000 turns is wound on a core. A current of 1A flowing through the coil creates a core flux of 1mwb. What is the energy stored in the magnetic field.A magnetic flux of 6 Wb-turn sets up in the coil, when a current of 3 A flows through it. What is the inductance of the coil ?
- The magnetic flux through each turns off a 100-turn coil is (³-2) milli-webers where t is in seconds. The induced EMF at t = 2 second is?You have a solenoid with an into all current of 577A and a turn dentistry of 6601 loops/m What is the intial magnetic field through the solenoid ? the current in the solenoid drops to 34 A over the course of 4ms. What is the final magetic field through the solenoid ? the coil has a resistance of 20. What is the current though the coil? what is the power disssipated by the coil? inside the solenoid 56loops and a radius of 6.2cm. What is the magnitude of the induced in the 56 turn coil. Positive nunberFor the figure shown below if the current is moving clockwise around the coil. Which direction does the coil rotate? S O The whole coil moves down. The whole coil moves up. The right side goes down, and the left side goes up. The right side goes up, and the left side goes down.