VP $25\mathrm{.}3\mathrm{.}3$ Part F Two wires of circular cross section are made of the same metal. Wire $1$ has radius rr and length LL; wire $2$ has radius $2$r$2$r and length $2$L$2$L$.$ The potential difference between the ends of the wire is the same for both wires. Find the ratio of the resistance of wire $2$ to the resistance of wire $1.$ Part G Find the ratio of the current of wire $2$ to the current of wire $1.$ Part H Find the ratio of the current density of wire $2$ to the current density of wire $1.$ Part I Find the ratio of the electric$-$field magnitude of wire $2$ to the electric$-$field magnitude of wire $1.$