Emf | - Part 3

What is the maximum value of the emf produced when the loop is spun at 1200 rev/min about an axis perpendicula?

Wednesday, March 2, 2011

An electric generator consists of 100 turns of wire formed into a rectangualar loop 40.0 cm by 30.0 cm, placed entirely in a uniform magnetic field with magnitude B = 3.50 T. What is the maximum value of the emf produced when the loop is spun at 1200 rev/min about an axis perpendicular to B?

A generator uses a coil that has 60 turns?

Friday, February 25, 2011

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A generator uses a coil that has 60 turns and a 0.45-T magnetic field. The frequency of this generator is 60.0 Hz, and its emf has an rms value of 120 V. Assuming that each turn of the coil is a square (an approximation), determine the length of the wire from which the coil is [...]

electromotive force ? physics questions! hurry!?

Wednesday, February 23, 2011

3 Comments

1.A flexible wire loop has a radius of r = 14.0 cm and it is inside a uniform magnetic field of B = 0.306 T. The loop is grasped at points P and Q and stretched until its area is zero. It takes 194 ms to close the loop. What is the magnitude of the [...]

CRAZY bedini adams magnetic pulse motor generator !!! Fast !!!

Monday, February 21, 2011

11 Comments

I made this inspired by alternative energy stuff from bedini and adams. It’s a 6 coil very simple magnetic pulse motor. I have made everything on autocad before working it out on CNC. Looks and sounds greate + charges batteries by EMF. Uses about 800ma @ 12v

A student attempts to make a simple gener-ator by passing a single loop of wire between the poles of a horses?

Friday, February 18, 2011

1 Comment

A student attempts to make a simple generator by passing a single loop of wire between the poles of a horseshoe magnet with a magnetic field of 2.3 ×10−2 T. The area of the loop is 3.50 ×10−3 m2 and is moved perpendicular to the magnetic field lines. In what time interval will the student [...]

Physics help please, I easily give good points, considered easy problems… electromagnetic waves?

Tuesday, January 25, 2011

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1.) A student attempts to make a simple generator by passing a loop of wire between the poles of a horshe magnet with a 2.5 x 10^-2 T field. the area of the loopis 7.54 x 10^-3 m^2 and is moved perpendicular to the magnetic fields lines. In what tome interval will the student haveto [...]

physics help please.?

Friday, January 14, 2011

1 Comment

A student modifies a simple generator by wrapping a much longer piece of wire around a cylinder with about one-fourth the area of the original loop (1.886 *10^-3 m2). Using a uniform magnetic field with a strength of 2.5* 10^-2 T, the student finds that by removing the coil perpendicular to the magnetic field lines [...]

Question about generators and power !?

Monday, January 10, 2011

1 Comment

A generator has a coil consisting of 100 turns enclosing an area of 400 cm². The magnetic field strength has a value of 0.225 T and the generator operates at 60 Hz. Find the maximum value of the emf generated

Faraday's law of induction?

Friday, January 7, 2011

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An electric generator contains a coil of 110 turns of wire formed into a rectangular loop 60.0 cm by 40.0 cm, placed entirely in a uniform magnetic field with magnitude B = 3.50 T and with B initially perpendicular to the coil’s plane. What is the maximum value of the emf produced when the coil [...]

Question about generators and power !?

Thursday, January 6, 2011

2 Comments

Water flowing through a canal at a rate of 1 * 10³ kg/s , drops through a small distance and turns a waterwheel. The wheel powers an AC generator providing electricity for a house. a) The water drops a vertical distance of 2m. Find the maximum theoretical power input to the generator. b) The generator [...]