A question answer community on a mission

to share Solutions for all STEM major Problems.

to share Solutions for all STEM major Problems.

Cant find a problem on ToughSTEM?

0

A 100uF capacitor is charged to a potential difference of 50V. How much energy is stored? B) What is the approximate capacitance of a parallel plate capacitor having plate area of 10cm^2 and separated by a single sheet of ordinary paper. Don't forget about the dielectric constant, k, and watch the units. You'll also need to estimate the thickness of a sheet of paper (or measure it).

Added Fri, 03 Jul '15

Community

1

Add a Comment

Solutions

0

(A) Energy = 1/2 * CV^2 = 1/2 * 100 * 10^(-6) * 50 = 0.0025 J

(B)The formula for a parallel plated capacitor is; C=Eo*Er*A/d. Leaving the permittivity aside, the formula could be considered as being; C=A/d. Hence, the capacitance is directly proportional to the area and indirectly proportional to the distance between the plates.

thickness of paper d= 0.1 mm

C = 10*10^(-4)/(0.1*10^(-3)) = 10 F

Added Fri, 03 Jul '15

Community

1

Add a Comment

Add Your Solution!

Close

Click here to

Choose An Image

or

Get image from URL

GO

Close

Back

Add Image

Close

What URL would you like to link?

GO

α

β

γ

δ

ϵ

ε

η

ϑ

λ

μ

π

ρ

σ

τ

φ

ψ

ω

Γ

Δ

Θ

Λ

Π

Σ

Φ

Ω

∫

∮

∞

∝

∇

∴

→

↔

⊆

⊂

∀

∃

∈

∉

∪

∩

∅

Copied to Clipboard

Sign Up

to interact with the community. (That's part of how we ensure only good content gets on ToughSTEM)

OR

OR

ToughSTEM is completely free, and its staying that way. Students pay way too much already.

Almost done!

Please **check your email** to finish creating your account!

Welcome to the Club!

Choose a new Display Name

Only letters, numbers, spaces, dashes, and underscores, are allowed. Can not be blank.

Great! You're all set, .

A question answer community on a mission

to share Solutions for all STEM major Problems.

to share Solutions for all STEM major Problems.

Why

The Purpose

The Purpose

How

The Community

The Community

Give Feedback

Tell us suggestions, ideas, and any bugs you find. Help make ToughSTEM even better.