Shape |

How to solve for the NUMBER OF TURNS in a magnetic coil..?

Tuesday, July 27, 2010

Hello.. i would like to ask if somebody can answer my question.. i need to know how many turns do we make in our coil.. We have a magnetic wire #32.. And we have a magnet with a strength of 150mT+ but just below 200mT(millitesla) Our magnet has a shape of a semi-circle a bit [...]

How to solve for the NUMBER OF TURNS in a magnetic coil..?

Monday, July 26, 2010

2 Comments

Hello.. i would like to ask if somebody can answer my question.. i need to know how many turns do we make in our coil.. We have a magnetic wire #32.. And we have a magnet with a strength of 150mT+ but just below 200mT(millitesla) Our magnet has a shape of a semi-circle a bit [...]

NIB magnets Magnetic Field?

Sunday, July 11, 2010

1 Comment

Hi there ! i am a building right now a generator based on scrap NIB magnets found in Hard drives and wanted to be able to calculate the Magnetic Field ‘B’ that emanates from them in order to find out the rate of flux change in the coil above them. for this i need a [...]

Magnetic Science Questions!?

Saturday, June 26, 2010

1 Comment

1. When a magnetic compass is placed near a wire carring an electric current, the direction in which the compass points is influenced by: a) only earths magnetism b)onlt the wires magnetism c)neither earths magnetism nor the wires magnetism d)both earths magnetism and the wires magnetism 2. A generator transforms: a)electrical energy into mechanical energy [...]

Magnetic field, coil generator?

Saturday, February 27, 2010

2 Comments

Hey guys, I’v got this question in an exam coming up and have no idea how to answer it to be honest! If a coil of wire is rotated in a magnetic field to form a generator and has the ends of the coil connected to a voltmeter using two slip ring, what sort of [...]