=D> <9880! A coaxial cable has inner radius u, outer radius w (w>u), and length d. Between the inner and outer conductors is a dielectric medium with a dielectric constant of &. A charge quantity of Q is uniformly distributed on the inner conductor surface. A charge quantity of -Q is uniformly distributed on the inner surface of the outer conductor. The whole coaxial cable is neutral. A. Calculate electric field intensity between the inner and the outer conductors. B. Find the voltage between the two conductors. C. Find the capacitance of this coaxial cable.

=D> <9880! A coaxial cable has inner radius u, outer radius w (w>u), and length d. Between the inner and outer conductors is a dielectric medium with a dielectric constant of &. A charge quantity of Q is uniformly distributed on the inner conductor surface. A charge quantity of -Q is uniformly distributed on the inner surface of the outer conductor. The whole coaxial cable is neutral. A. Calculate electric field intensity between the inner and the outer conductors. B. Find the voltage between the two conductors. C. Find the capacitance of this coaxial cable.