A solid cylindrical conductor of radius a and charge Q is coaxial with a cylindrical shell of negligible thickness, radius b> a, and charge - Q (Fig.1). Find the capacitance per unit length of two coaxial metal cylindrical tubes of radii a and b, and length L shown in the figure below. (1) 2.76, In (b) 278 (ii) (ii) 2.7c, In(a) (iv) None of the above L

A 31 m length of coaxial cable has a solid cylindrical wire inner conductor with a di- ameter of 2.168 mm and carries a charge of 10.02 µC. The surrounding conductor is a cylindrical shell and has an inner diameter of 11.534 mm and a charge of-10.02 C. What is the capacitance of this cable? As- sume the region between the conductors is air. The value of the Coulomb comstant is 8.98755 x 10° N m²/C. Answer in units of nF.

For the system of capacitors shown in the figure below, find the following. (Let C, = 8.00 µF and C, = 3.00 pF.) 6.00 µF 2.00 µF 90.0 V (a) the equivalent capacitance of the system 3.429 Your response differs from the correct answer by more than 10%. Double check your calculations. pF (b) the charge on each capacitor on C1 on C, on the 6.00 uF capacitor on the 2.00 uF capacitor (c) the potential difference across each capacitor across C, V across C2 V across the 6.00 µF capacitor V across the 2.00 pF capacitor Need Help? Read It

Consider a solid cylindrical conductor of inner conductor radius 61 cm and outer conductor radius 84 cm with charge Q that is coaxial with a cylindrical shell of negligible thickness. Find the capacitance, in nF, of this cylindrical capacitor if its length is 74 m and the insulator used is mica (εr =  6).