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Physics CIE help

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*Hope*:

--- Quote from: nid404 on April 24, 2010, 05:31:07 pm ---ohk...E=qv  I'll tell u the derivation

energy= force X displacement right?

E=Voltage / distance & also E= Force/charge (E=Electric field strength)  [i hope ur aware of this one]

so Voltage / distance= Force/charge
   Force= Voltage X Charge / distance
   Energy= Force X displacement
            = Vq/ d  X d
             = Vq

Got it?

--- End quote ---
Thanks but is electric field strength the same as energy??

nid404:

--- Quote from: lolo93 on April 25, 2010, 05:02:51 am ---Thanks but is electric field strength the same as energy??

--- End quote ---

noooooo!

T.Q:

--- Quote from: lolo93 on April 25, 2010, 05:02:51 am ---Thanks but is electric field strength the same as energy??

--- End quote ---

electric field: is a property that describes the space that surrounds electrically charged particles or that which is in the presence of a time-varying magnetic field. This electric field exerts a force on other electrically charged objects.

astarmathsandphysics:
No electric field is more closely related to force via the equation F=Eq=Electric field*charge
but also W=Fd=Force *distance=Eqd

*Hope*:

--- Quote from: astarmathsandphysics on April 25, 2010, 09:50:57 am ---No electric field is more closely related to force via the equation F=Eq=Electric field*charge
but also W=Fd=Force *distance=Eqd

--- End quote ---
ok i get this one but for energy=VQ i am still confused since Energy is not = to electric field strength so we can not substitute there right?? ??? :-\

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