Calculate the current needed to produce the flux, Physics

1). A ring of outer diameter 80 cm is made from square of cross -section steel bar size(8 *8 cm) . If relative permeability 1200 for steel . calculate the current needed to produce the flux of 4 mili weber in the steel . In a coil of 600 turns wound on the core .what is the flux density and magnetizing force H?

2)  A rectangular transformer core is made with silicon steel with area 30 cm square and mean length 1.25 metre and air gap of 8 mm is cut on the core .Given that leakage co-efficient is 1.25 and relative  permeability is 1500.Caculate the number of turns needed in the exisisting coil which carries a current of 3 ampere to produce a flux density 1.5 tesla in a airgap?

Posted Date: 2/21/2013 6:18:33 AM | Location : United States

Related Discussions:- Calculate the current needed to produce the flux, Assignment Help, Ask Question on Calculate the current needed to produce the flux, Get Answer, Expert's Help, Calculate the current needed to produce the flux Discussions

Write discussion on Calculate the current needed to produce the flux
Your posts are moderated
Related Questions
Q. Select the correct trajectory of the ball after it breaks? A ball is being whirled on a string. At the instant shown in figure, the string breaks. choose the correct traject


If the distance between the earth and moon were halved, the force of the attraction between them would be: a) One fourth as great b) One half as great c) Twice as g

Q. Heisenberg's uncertainty principle of position & momentum. Describe an experiment to study the uncertainty of position & momentum.   Heisenberg's Uncertainty Principle : It

Q. Why does heat makes matter to expand? Answer:- Water contracts as it cools similar to all other liquids until it reaches a temperature of about 4 degrees Celsius at whi

Photomultiplier tube(PTM) it can detect a weak flash of light and estimate the amount of light .The principle of operation (fig(4)) a light photon released electron at the phot

Moment of Thin Spherical Shell About Axis This problem can be set up in spherical coordinates so that conversions from Cartesian coordinates are not required. The mass element

The energy band formed by a series of energy levels having valence electrons is called as valence band. At 0 K, the electrons fulfill the energy levels in valence band initialising

The cold filament resistance of a light bulb is 20.0). The bulb consumes 75 W when it is operating from a 120-V source. By what factor does the start-up current in the bulb

Draw the symbolic representation of a (i) p-n-p, (ii) n-p-n transistor. Why is the base region of transistor thin and lightly doped? With proper circuit diagram, show the biasin