Potential difference between two plates

AI Thread Summary
To find the potential difference between two parallel plates with equal and opposite charges, the electric field can be calculated using the surface charge density. Given a surface charge of 31 nC/m² and a separation of 16 cm, the electric field (E) is determined to be approximately 5.5 x 10^4 N/C. The potential difference (V) can then be calculated using the formula V = E * d, where d is the distance between the plates. The user is seeking assistance in verifying their calculations and understanding the process. Clear steps and calculations are requested to facilitate effective help.
ktgee25
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The problem says that there are two parallel plates having charges of equal magnitude but opposite signs and they are separated by 16cm. Each plate has a surface charge of 31 nc/m2(sorry don't know how to superscript). I need to find the potential difference between the plates.

I thought I needed to find the electric field of the plate but modelling it as an infinite plane and then find the potential but I can't seem to get the right answer. I was wondering if someone could help me.
 
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