Concepts Of Physics MCQ Edition [Volume 2]PhysicsSemiconductors and Semiconductor Devices

Electrical conduction within a semiconductor occurs due to

Options

Aneither electrons nor holes
Bonly holes
Cboth electrons and holes
Donly electrons

Correct answer

C. both electrons and holes

Step-by-step solution

In a semiconductor, electrical conduction takes place due to the movement of both electrons in the conduction band and holes in the valence band. When an electric field is applied, electrons move in the direction opposite to the electric field, while holes move in the direction of the electric field, both contributing to the total current.

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