Answer Happy

the plates should be 5mm apart i believe , and the plates about 20 meters squares
this equation has to be used
1. For your post, upload the calculations you made to determine the side of each square plate of the capacitor in the scenario AND your calculations for a capacitor with a dialectric decribed below. 2. Using the same size of the plates and plates' separation (as in the Scenario), calculate the capacitance of a capacitor with a dialectric Polystyrene inserted between the plates (Refer to values in Table 19.1 Dielectric Constants and Dielectric Strengths for Various Materials at 20°C).
And put the plates what, 5mm apart?
Peter's calculations should say that the plates will be about 20 meters square - huge! An example is shown in Figure 19.13a from your College Physics textbook. Select the Next button to go to the next screen.
CAPACITANCE OF A PARALLEL PLATE CAPACITOR C = 80 d
Material Vacuum Air Bakelite Fused quartz Neoprene rubber Nylon Paper Polystyrene Pyrex glass Silicon oil Strontium titanate Teflon Water Dielectric constant 1.00000 1.00059 4.9 3.78 6.7 3.4 3.7 2.56 5.6 2.5 233 2.1 80 Dielectric strength (V/m) 3x106 24 x 106 8x106 12 x 106 14 x 106 16 x 106 24 x 10° 14 x 10° 15 x 106 8 x 106 60 x 106 Table 19.1 Dielectric Constants and Dielectric Strengths for Various Materials at 20°C