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    Are charge and current directly proportional?

    and

    Are power and irradiance proportional?
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    (Original post by chic geek)
    Are charge and current directly proportional?

    and

    Are power and irradiance proportional?
    Charge and current are, due to Q = It, but idk about the second one, I'm only GCSE
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    Also yes to the second
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    (Original post by Tskadem)
    Also yes to the second
    Is there some kind of equation to show their proportional relationship? Thanks!
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    (Original post by chic geek)
    Are charge and current directly proportional?

    and

    Are power and irradiance proportional?
    I got a Grade 8 in my Physics mock!!!
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    About the first one.

    Current is just the rate of flow of charge (electrons) , which means how fast 1 Coulomb of electrons pass through a point in 1 second. The more charge you passes through,the more the current increases.
    ( By the way, 1 Coulomb of charge contains 6.2x10^18 electrons)
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    Yeah, irradiance is just the power per unit area.
    I=P/(4*pi*r^2)
    For a spherical source.
    (Original post by Iluv2edgedsword)
    Is there some kind of equation to show their proportional relationship? Thanks!
 
 
 
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