[Eminem's-Bitch]

Does anybody know how the Weber is defined for CCEA A2 Physics? The spec says we need to know it but I can't find it anywhere in my notes.

[Stonebridge]

It should be defined the same way as anywhere else, I would hope

"The weber is the magnetic flux which induces an emf of one volt in a coil of one turn when the flux is reduced uniformly to zero in one second."

(Or some similar equivalent wording expressing the same idea. It's based on Faraday's Law.)

[Eminem's-Bitch]

(Original post by Stonebridge)
It should be defined the same way as anywhere else, I would hope

"The weber is the magnetic flux which induces an emf of one volt in a coil of one turn when the flux is reduced uniformly to zero in one second."

(Or some similar equivalent wording expressing the same idea. It's based on Faraday's Law.)

Thanks

[teachercol]

For OCR anyway - the weber is based on the definition of magnetic flux.

1 Weber is the magnetic flux when there is a magnetic flux density of 1 Tesla perpendicular to a coil of area 1 m^2.

ie 1Wb = 1T x 1m^2.

(of course this comes to the same thing given the definitions of the Tesla and the Volt)