Information of particular value to SEPS students building projects.

Important note: The information in these pages constitutes no course material. It contains errors and must be used with discretion.

- * Conversion tables - inches to millimetres etc.
- * Physical constants
- * Decibels demystified - a guide to the unit
- * Electronics Prototype System
- * Preferred values
- * Producing wound components
- * Interface connectors - Pinouts, signals
- * Logic circuit construction - the Enamel Wiring Pen
- * Operating the Network Analyzer
- * Optoelectronics - the visible spectrum
- * Personal Support
- * Purchasing Guide - Where to obtain the part you want
- * Voltage regulators

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Please visit the Technical Services Unit between 10:30 and 11:30 on Thursdays. Richard Clarke will make every effort to be available then. If not then please ask for Eric Worpe.

You may also try contacting us at other times, or by e-mail.

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From | To | Multiply by |
---|---|---|

acres | hectares | 0.4047 |

arc minute | radians | 2.9089E-04 |

arc second | radians | 4.8481E-06 |

bars | pounds per square inch | 14.508 |

centigrade | Fahrenheit | 9/5 then add 32.0 |

degree of angle | radians | 1.7453E-02 |

electron volts | joules | 1.60210E-19 |

ergs | joules | 1.0e-7 |

feet | metres | 0.3048 |

gallon (UK) | litres | 4.5461 |

gauss | teslas | 1e-4 |

grams per litre | kilograms per metre^{3} | 1.0 |

hectares | acres | 2.471 |

horsepower | watts | 746 |

inches | metres | 0.0254 |

inches | millimetres | 25.4 |

kilometres | miles | 0.6214 |

litres | gallons (UK) | 0.21998 |

litres | pints | 1.76 |

litres | metres^{3} | 0.001 |

metres | inches | 39.37 |

miles | metres | 1609.3 |

nautical miles | metres | 1853.3 |

newtons | kilogramme-force | 0.101972 |

ounces | grams | 28.35 |

pint | litre | 0.568 |

ton (UK) | kilograms | 1 016.05 |

yard | metre | 0.9144 |

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Value | E6 | E12 | E24 |
---|---|---|---|

1.0 | * | * | * |

1.1 | - | - | * |

1.2 | - | * | * |

1.3 | - | - | * |

1.5 | * | * | * |

1.6 | - | - | * |

1.8 | - | * | * |

2.0 | - | - | * |

2.2 | * | * | * |

2.4 | - | - | * |

2.7 | - | * | * |

3.0 | - | - | * |

3.3 | * | * | * |

3.6 | - | - | * |

3.9 | - | * | * |

4.3 | - | - | * |

4.7 | * | * | * |

5.1 | - | - | * |

5.6 | - | * | * |

6.2 | - | - | * |

6.8 | * | * | * |

7.5 | - | - | * |

8.2 | - | * | * |

9.1 | - | - | * |

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Quantities marked** D** are exact values by definition.

Quantity | Symbol | Value | Unit |
---|---|---|---|

Permeability of a vacuum | μ_{0} |
1.256 637×10^{-6} | H m^{-1} |

Permittivity of a vacuum | ε_{0} |
8.854 186×10^{-12} | F m^{-1} |

Speed of light in a vacuum D | c | 2.997 924 58×10^{8} | m s^{-1} |

Standard Gravity D | g_{n} |
9.806 65 | m s^{-2} |

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E-mail: R.Clarke@surrey.ac.uk

Last modified: 2013 May 28^{th}.