Maths


Prefixes



You first saw a very similar table to this in the ILC but now there is added an extra column in the scaling which shows you the exponential value.


Prefix

Prefix Name

Scaling

Example

p

pico

 1/1,000,000,000,000

0.000000000001

 1.0 x 10-12

1pF

 1 pico farad

n

nano

1/1,000,000,000

0.000000001

 1.0 x 10-9

1nF

 1 nano farad

u

micro

1/1,000,000

0.000001

 1.0 x 10-6

0.1uF

 1 micro farad

m

milli

1/1,000

0.001

 1.0 x 10-3

1mA

 1 milli amp

1

 1.0 x 100

k

kilo

1000

 1.0 x 103

1kThe symbols for ohms

 1 kilo ohms

M

Mega

1,000,000

 1.0 x 106

1MThe symbols for ohms

 1 mega ohms

G

Giga

1,000,000,000

 1.0 x 109

1GHz

 1 giga hertz

You need to be able to convert between one prefix and another. NOTE: that the interval between the changes is 1,000 103 or 10-3 whichever way you are going !!!

This was also introduced to you in the ILC

Goal Makers Kick Once Many Underestimate Noise Pollution


Goal = Giga

Makers = Mega

Kick = kilo

Once = 1

Many = milli

Underestimate = µ for micro

Noise = nano

Pollution = pico



End of maths for the exam..

Well that really is the end of the basics to the maths in the course. If you still find things difficult then ask your tutor to help you or email the course tutor of this web site and additional information could be placed here to help you and other students.

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