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1 markElectrical Quantities

CAPE Physics Unit 2 · 2005 · Paper 1 · Question 1(a)(i)

Questions on charge carriers and current in conductors and solutions.

Explain what is meant by the 'drift velocity' of charge carriers.

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  1. 1(a)(ii)Figure 1 shows a current i flowing through a length of wire L with cross-sectional area A, containing n charge carriers per unit volume, with average drift…[4 marks]
  2. 1(b)(i)Calculate the number of electrons passing through the wire each second.[2 marks]
  3. 1(b)(ii)Calculate the drift velocity of the charge carriers in the salt solution.[3 marks]

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