Q24
A doped germanium crystal of length 2 cm, breadth 1 cm and width 1 cm, carries a current of 1 mA along its length parallel to +X-axis. A magnetic field of 0.5 T is applied along +Z-axis. Hall voltage of 6 mV is measured with negative polarity at y = 0 plane. The sign and concentration of the majority charge carrier are, respectively [Given, e = 1.6 × 10-19 C]
A doped germanium crystal of length 2 cm, breadth 1 cm and width 1 cm, carries a current of 1 mA along its length parallel to +X-axis. A magnetic field of 0.5 T is applied along +Z-axis. Hall voltage of 6 mV is measured with negative polarity at y = 0 plane. The sign and concentration of the majority charge carrier are, respectively [Given, e = 1.6 × 10-19 C]
A.
positive and 5.2 × 1019 m-3
B.
negative and 5.2 × 1019 m-3
AnswerC.
positive and 10.4 × 1019 m-3
D.
negative and 10.4 × 1019 m-3
Answer: Option B
Solution
Answer: Option B
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