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8 marksMagnetic Forces

CAPE Physics Unit 2 · 2001 · Paper 2 · Question 5(a)

The Hall effect in charge carriers.

Give a detailed explanation of the origin of the Hall effect and define the Hall potential difference. Include a diagram clearly showing relevant vector quantities for a specimen in which electron conduction predominates.

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  1. 5(b)(i)A p.d. of 8.75 mV is produced across its edges. Given that the magnitude of charge of each carrier is 1.6 × 10^(-19) C, calculate the number of charge carriers…[7 marks]
  2. 5(b)(ii)Deduce what type of material is best suited for a large Hall potential difference, and describe how the magnitude of the magnetic field and the thickness of…[5 marks]

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