physics- static electricity

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7 Terms

1
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formulas for energy stored in a capacitor (3)

W = ½ . qV = ½ . CV2 = ½ . q2/C

2
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formula for capacitance

hint; ratio of - to -

C = Q/V

3
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Electric field intensity when voltage and distance are given

E = V/r

4
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Electric field intensity when force and charge are given

E = F/q

5
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what is electric potential

the work done in bringing a unit positive charge from infinity to a point in an electric field.

6
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what is electron volt

the energy gained by an electron if it accelerates through a p.d of 1 volt

7
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state the relationship between capacitance, distance permitivity and Area

C = EoA/d