Difference between revisions of "1.4 (k)"
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(New page: =Class experiment= 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 ...) |
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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. | ||
===Resources=== | ===Resources=== | ||
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Class set of: micrometers and circuits. | Class set of: micrometers and circuits. | ||
===Safety=== | ===Safety=== | ||
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Revision as of 10:35, 26 August 2008
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
I = neAv
Equipment
Class set of: micrometers and circuits.
