The simplest model capacitor consists of two thin parallel conductive plates separated by a dielectric with permittivity . This model may also be used to make qualitative predictions for other device geometries. The plates are considered to extend uniformly over an area A and a charge density = Q/A exists on their surface. Assuming that the length and width of the plates are much greater than their separation d, the electric field near the centre of the device will be uniform with the magnitude E = /. The voltage is defined as the line integral of the electric field between the plates
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What equation describes the charge density for an unideal model of a capacitor?
Ah, so.. unanswerable

Population growth is higher than the national average, with a 6.4% increase, in the Somerset County Council area, since 1991, and a 17% increase since 1981. The population density is 1.4 persons per hectare, which can be compared to 2.07 persons per hectare for the South West region. Within the county, population density ranges 0.5 in West Somerset to 2.2 persons per hectare in Taunton Deane. The percentage of the population who are economically active is higher than the regional and national average, and the unemployment rate is lower than the regional and national average.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is the average people per hectare in the UK?
Ah, so.. unanswerable

The era of planning in Himachal Pradesh started 1948 along with the rest of India. The first five-year plan allocated 52.7 million to Himachal. More than 50% of this expenditure was incurred on road construction since it was felt that without proper transport facilities, the process of planning and development could not be carried to the people, who mostly lived an isolated existence in far away areas. Himachal now ranks fourth in respect of per capita income among the states of the Indian Union.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Where does Himachal Pradesh rank in per capita?
Ah, so..
fourth