# PhysicsFind the area of the metal plate

#### Mango12

##### Member
I know C=Epsilon0(A)/delta x

From the problem, C=3,000
Epsilon0 = 8.85 × 10^-12
and delta x is .5mm

The answer is supposed to be given in meters and should be close to 40,000 but I got 1.6*10^11m....help please!

#### MarkFL

Staff member
Can you state the entire problem as given?

#### Mango12

##### Member
Can you state the entire problem as given?
Now let's find the area of the metal plates. We already know from a previous problem that there is a 3,000 coulomb charge on the plates. The plates are placed .5mm apart. (approximate answer is 250 miles, but give your answer in meters)