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The figure below shows a portion of the energy band diagram of a p-n semiconductor junction. According to the situation shown in the figure, in the equilibrium condition, we can identify the currents as follows:
(a) i1:electron diffusion current, i2:electron drift current, i3:hole diffusion current and i4:hole drift current.
(b) i1:hole drift current, i2:electron drift current, i3:hole diffusion current and i4:electron diffusion current.
(c) i1:hole diffusion current, i2:electron drift current, i3:hole drift current and i4:electron diffusion current.
(d) i1:electron diffusion current, i2:electron diffusion current, i3:hole drift current and i4:hole drift current.
(e) i1:hole drift current, i2:electron diffusion current, i3:hole diffusion current and i4:electron drift current.
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