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sir can you tell me the relation between time,resistivity and length
i got
t=Rl
Science investigation project
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jkarnes
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Re: Science investigation project
Hello,
I'm not sure if this relates to a science project, but we may consider resistance across (for example) a wire,
R = p*L/A
where R is resistance, p is resistivity, L is length, and A is cross-sectional area. Expand all the units of these terms (e.g. R = ohm = kg*m^2/(s^3*A^2) )
If you like, from here, we may substitute this expression for R into V=IR
and note that I is current (Coulomb/second) and V = voltage (Joules/Coulomb.)
-John
I'm not sure if this relates to a science project, but we may consider resistance across (for example) a wire,
R = p*L/A
where R is resistance, p is resistivity, L is length, and A is cross-sectional area. Expand all the units of these terms (e.g. R = ohm = kg*m^2/(s^3*A^2) )
If you like, from here, we may substitute this expression for R into V=IR
and note that I is current (Coulomb/second) and V = voltage (Joules/Coulomb.)
-John