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PhysicsMediumNumerical2021 · 18 Mar Shift 2

Q29.The typical output characteristics curve for a transistor working in the common-emitter configuration is shown in the figure. The estimated current gain from the figure is

What This Question Tests

This question tests the ability to interpret a common-emitter output characteristic curve for a transistor and calculate the AC current gain (beta) from the graph. It requires choosing appropriate points on the curve to find changes in collector and base current.

Concepts Tested

Transistor characteristicsCurrent gain (β)Common-emitter configuration

Formulas Used

β_ac = ΔI_C / ΔI_B (at constant V_CE)

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