A 3.72-pF, parallel-plate, air-filled
capacitor with circular plates is to be used in a circuit in which it will be subjected to potentials of up to4.00 102 V. The electric field between the plates is to be no greater than 5.00 104 N/C. As a budding electrical engineer for Live-Wire Electronics, your tasks are the following.
(a) Design the capacitor by finding what its physical dimensions and separation must be. (radius and plate separation in cm)
(b) Find the maximum charge these plates can hold.