How does torsion produces power?
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How does torsion produces power?
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- What is MMF? O Magnetic Machine Force Magnetomotive Force Magnetic Motion Force Magnetomotion Forceno more than 50 words. A self-excited DC generator has lost its residual magnetism and therefore cannot work (cannot build-up voltage), How would you restore this residual magnetism and make it work again?The full-scale deflecting torque of a 20 A moving-iron ammeter is 6 x 10-5 N-m. What is the rate of change of self-inductance with respect to the deflection of the pointer of the ammeter at full scale?
- Explain the hysteresis that can be found in materials due to force, magnetic and electrical subjection (give an example on two different materials) high carbon stainless steel.By changing the number of turns/ windings. Does the most effective electromagnet have more or fewer winds? TOPIC: MAGNETISM11. There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400Wb? 14,400 At/Wb B 1,440 At/Wb Ⓒ9,000 At/Wb O90,000 At/Wb Answer: Option O Explanation: No answer description is available. Let's discuss.
- A long solenoid is wound with1000 turns of thin insulated wire over a 15cm length. The core of the solenoid is iron, with a susceptibility of 3000. What is the permeability? What is the relative permeability? What is the magneticintensity H when the current is 10 mA? What is the magnetization of iron for this H? What is the magnetic field B for this H?A 10 pole d.c. machine has a lap wound armature. It has 600 conductors, each of resistance 0.05 ohm. What is the armature resistanceWhich of the following is the analogous of current in an electrical circuit when it is compared to a magnetic circuit? Reluctance Magnetomotive force Magnetic flux Permeability
- Click Submit to complete this assessment. Question 8 If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be 100 V zero 10 V 220 V A Click Submit to complete this assessment. I'm Cortana. Ask me anything.In your own words define magnetic flux and self-inductance?A solenoid is 1 Cm long with a diameter of 0.5 Cm. The core is SiFe with a relative permeability of 4200. Assuming a current of 100 mA, what is the maximum number of turns for the winding that keeps the core under the saturation magnetic field of about 1.5 Tesla?