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| Current
Electricity |
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| Symbols |
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| n | I=current in
amperes (A) |
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| n | Δq=charge
in coulombs (C) |
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| n | t=time in
seconds (s) |
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| n | V=potential
difference in volts (V) |
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| n | W=work in Joules
(J) |
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| n | R=resistance in
ohms (Ω) |
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| n | ρ=resistivity
in (Ω.m) |
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| n | L=length of wire
in meters (m) |
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| n | A=cross-sectional
area of wire in |
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| square meters (m2) |
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