Can't use this because I didn't tell you everything, srry about that.
Drift Velocity — Isaac Physicshere's the question if you want less ramble and more notations and what not, I don't use latex but a lot of people I know do. Basically I would use the volume in those two eqns you gave but we aren't given the cross sectional A.
What I want to find out is the velocity of the electrons in the wire and I know we can use the eqns:
p = RA/L
I = n x q x A x v
V = I x R
L is given as being pi bec the radius is 0.5 m and therefore the circumference and length of the circle is pi,
p = RA/L can be rearranged to get R = pL/A
we know V (Voltage), q (aka e, charge of an electron), R (resistance), L (length of wire), p (resistivity), Density. Na and Mr are given too.
(Potential of the cell: V = 1.50V
Radius of the circuit: a = 0.500m therefore L is pi = 3.14 ...
Resistivity of copper: ρ = 1.80×10−8Ωm
Density of copper: D = 8.96×10^3kgm
Relative atomic mass of copper: ma = 63.5gmol
Avogadro's constant: nA=6.02×10^23)
I got until
V = (n x q x A x v x p x L) / A
you can therefore remove surface area from the eqn which is correct as it isn't a given value, but then although everything else is known, n isn't and that's whats stopping me from getting to lower case v (velocity).
We don't get mass, volume or number of moles in the wire or anything like that. I know mas of the wire can be rewritten as DAL but then that would add another cross sectional area A into the eqn that can't cancel (i think).