Question

The resistivity at room temperature of intrinsic silicon is 2.3×103 Ωm and that of an n-type

extrinsic silicon sample is 8.33×10-2 Ωm. A bar of this extrinsic silicon 50×100 mm and a

steady current of 1µA exist in the bar. The voltage across the bar is found to be 50 mV. If the

same bar is of intrinsic silicon, the voltage across the bar will be?​

Answer 1

Explanation:

The resistivity at room temperature of intrinsic silicon is 2.3×103 Ωm and that of an n-type

extrinsic silicon sample is 8.33×10-2 Ωm. A bar of this extrinsic silicon 50×100 mm and a

steady current of 1µA exist in the bar. The voltage across the bar is found to be 50 mV. If the

same bar is of intrinsic silicon, the voltage across the bar will be?