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OCR PHYSICS B G495~ 18th June 2015 AM ~ A2 Physics Watch

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    What did everyone write about Z?

    I wrote the flux was the same, but the density was twice as great.
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    (Original post by Minecraft27)
    What did everyone write about Z?

    I wrote the flux was the same, but the density was twice as great.
    I kind of wrote the same. Did they say that area halved? I must've missed it and just said that density increased.


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    (Original post by Rhetorical Hips)
    I kind of wrote the same. Did they say that area halved? I must've missed it and just said that density increased.


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    The area of Z was half the width of the rest of the core.

    I wrote that the density therefore doubled, and the flux stayed the same.
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    (Original post by Minecraft27)
    The area of Z was half the width of the rest of the core.

    I wrote that the density therefore doubled, and the flux stayed the same.
    What did you say about the crack?


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    (Original post by Minecraft27)
    It depends what number you started with. I started with the answer I got which was 5.5 or something like that.

    My answer led me to 379. I'm sure they'll allow it.
    ah ok that's good thank you
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    (Original post by Rhetorical Hips)
    I kind of wrote the same. Did they say that area halved? I must've missed it and just said that density increased.


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    yeah flux was the same and flux density doubled
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    (Original post by Rhetorical Hips)
    What did you say about the crack?


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    Flux goes down, flux density stays same.
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    (Original post by Rhetorical Hips)
    What did you say about the crack?


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    it stopped the flow of flux in the core, so the flux decreased and due to air being a good insulator, the flux density unchanged
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    Is quark number the same as baryon number?
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    (Original post by Minecraft27)
    Flux goes down, flux density stays same.
    Thats impossible mate. By definition, flux density is flux/area. Unless the area halved due to the crack, the flux density would also fall.
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    (Original post by HennersPD)
    it stopped the flow of flux in the core, so the flux decreased and due to air being a good insulator, the flux density unchanged
    I wrote air has a lower permeability than iron. Think I'll still get the mark? I wrote the density was unchanged but flux went down.
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    (Original post by Minecraft27)
    I wrote air has a lower permeability than iron. Think I'll still get the mark? I wrote the density was unchanged but flux went down.
    yeah I'm sure! what'd you say for the equipotentials where the field at X was stronger than Y and then how did you draw the complete equipotential for X? I did a curve through the point X?! :/
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    (Original post by STATER)
    Thats impossible mate. By definition, flux density is flux/area. Unless the area halved due to the crack, the flux density would also fall.
    so the flux density would also decrease?
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    (Original post by HennersPD)
    so the flux density would also decrease?
    Yes
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    (Original post by HennersPD)
    yeah I'm sure! what'd you say for the equipotentials where the field at X was stronger than Y and then how did you draw the complete equipotential for X? I did a curve through the point X?! :/
    I did a ring around the centre going through point X.

    I said it was 4 times stronger at X than at Y.
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    what did people get for the temperature T when 3N electrons are released?
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    (Original post by HennersPD)
    what did people get for the temperature T when 3N electrons are released?
    2312 kelvin. Don't know if that's right or not.
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    (Original post by HennersPD)
    what did people get for the temperature T when 3N electrons are released?
    2800 or something close to that
    Edit: I don't remember well. Only that it was the same 1st SF
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    (Original post by Minecraft27)
    I did a ring around the centre going through point X.

    I said it was 4 times stronger at X than at Y.
    Phew! that's what I did too, thought it was wrong when i drew it because it looked quite strange haha! Ah ok me too
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    (Original post by Minecraft27)
    2312 kelvin. Don't know if that's right or not.
    I got something similar too
 
 
 
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