CAIE A-Level Physics A2 20.3.3 The Origi…n V H Bi

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A thin slice of conducting material has its faces PQRS and VWXY normal to a uniform magnetic field of flux density B, as shown in Fig. 9.1.

Fig. 9.1

Electrons enter the slice at right-angles to face SRXY.
A potential difference, the Hall voltage $V_{\mathrm{H}}$ , is developed between two faces of the slice.

The Hall voltage $V_{\mathrm{H}}$ is given by the expression

V_{\mathrm{H}}=\frac{B I}{n t q} .

State the meaning of the symbol n.

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CAIE A-Level Physics A2 20.3.3 The Origin of the Hall Voltage and Derive and Use the Expression V H Bi Topic Practice

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