Difference between revisions of "1.4 (k)"
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| + | ==Derivation of I=nave== | ||
| + | Here is a sheet that leads them through the derivation of I = nave | ||
| + | [[media:derivation of I = nave|Derivation of I=nave]] | ||
=Class experiment 1= | =Class experiment 1= | ||
Finding the drift velocity of electrons in different wires. A series circuit with bare copper (connection) wires has a bare (iron) filament wire that will glow when the circuit is complete. The pupils are asked to predict 'in which material the electrons will travel faster (have a higher drift velocity)'. The pupils will need values of e and n. They will use a micrometer screw gauge to find A and measure I with an ammeter. | Finding the drift velocity of electrons in different wires. A series circuit with bare copper (connection) wires has a bare (iron) filament wire that will glow when the circuit is complete. The pupils are asked to predict 'in which material the electrons will travel faster (have a higher drift velocity)'. The pupils will need values of e and n. They will use a micrometer screw gauge to find A and measure I with an ammeter. | ||
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Class set of: micrometers and circuits. | Class set of: micrometers and circuits. | ||
===Safety=== | ===Safety=== | ||
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=Syllabus= | =Syllabus= | ||
[[Motion, Energy & Charge]] | [[Motion, Energy & Charge]] | ||
Latest revision as of 04:22, 4 September 2009
Contents
Here is a sheet that leads them through the derivation of I = nave Derivation of I=nave
Class experiment 1
Finding the drift velocity of electrons in different wires. A series circuit with bare copper (connection) wires has a bare (iron) filament wire that will glow when the circuit is complete. The pupils are asked to predict 'in which material the electrons will travel faster (have a higher drift velocity)'. The pupils will need values of e and n. They will use a micrometer screw gauge to find A and measure I with an ammeter.
Resources
Analysis
<math>I = nAve</math>
Equipment
Class set of: micrometers and circuits.
