A potential difference of 3.00 nV is set up across a 2.00 cm length of copper wire that has a radius of 2.00 mm. How much charge drifts through a cross section in 3.00 ms? The resistivity of copper is 8 rho 1.69 10 m − = ⋅ Ω⋅ .

3.35×10^-7C

Explanation:

First we must put down the formula for charge drifting at a time t. But current is related to voltage by ohm's law as shown in the image attached. From the relation of ohm's law and the formula for resistivity, the expression that can be used to obtain the charge flowing at a time t, can be derived. Substitution of values gives the answer.

365.25 earth days are in the year of a light year