Audio 1

Calculate the

(Since Area is given, we will use this new equation to calculate C. Change 5mm to 5m.)

The answer of 7,08 x 10^{-11}F can be changed to pF.

How:

7,08 x 10^{-11}F

= 70,8 x 10^{-12} F

= 70,8 pF

(Remember that p = 10^{-12})

The Area is **0,4cm**^{2}.

To convert a**cm**^{2} to **m**^{2} you must:

•**divide by 100**, and **divide by 100 again**

Hence 0,4cm^{2} = 4 x 10^{-5}m^{2}

Now substitute:

To convert a

•

Hence 0,4cm

Now substitute:

To convert the answer to mm, multiply by 1000.

0,0177 x 1000

= 17,7mm

(answer the following questions)

The Area must be maximised.

C is proportional to A, so an increase in A will result in an increase in C.

Audio 6.1

C is proportional to A, so an increase in A will result in an increase in C.

Audio 6.1

C is inversley proportional to d.

Hence the distance between the plates must be minimised.

Audio 6.2

Hence the distance between the plates must be minimised.

Audio 6.2

C is proportional to the dielectric constant

Use a substance that has the highest possible dielectric constant.

Audio 6.3

Use a substance that has the highest possible dielectric constant.

Audio 6.3

Calculate the