When the electric field applied to GaAs specimen is less than the threshold electric field, the current in the material:

Mr. Dubey • 52.30K Points
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Q. When the electric field applied to GaAs specimen is less than the threshold electric field, the current in the material:

(A) increases linearly

(B) decreases linearly

(D) decreases exponentially

Correct : Option (A)

Explanation:

 when the electric field applied is less than the threshold value of electric field, the electrons jump from the valence band to the primary valley of the conduction band and current increases linearly with electric field.

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Q. When the electric field applied to GaAs specimen is less than the threshold electric field, the current in the material:

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