Final answer:
The electric field strength between two large parallel conducting plates with opposite and equal charges is a fundamental concept in electrostatics within Physics. The strength can be calculated using the surface charge density and vacuum permittivity, or from the potential difference between the plates and their separation.
Step-by-step explanation:
The student's question relates to the concept of the electric field (electric field strength) generated between two parallel conducting plates that are charged with opposite but equal charges. This situation is described by electrostatic principles in Physics. The electric field strength (E) between two such plates is uniform and can be calculated using the formula:
E = σ / ε0
where σ is the surface charge density on the plates (charge per unit area) and ε0 is the vacuum permittivity. The direction of the electric field goes from the positively charged plate towards the negatively charged plate. If a potential difference is given between the plates, the electric field can also be found using the formula:
E = V / d
where E is the electric field strength, V is the potential difference and d is the separation between the plates.