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Load resistance of a CE amplifier from the change in base and collector currents and the voltage gain

The same question, asked 2 times: 15 Apr 2026 S2, 16 Apr 2026 S1. Every wording below, oldest first.

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  1. Question 1

    15 Apr 2026 S2

    150
    In common emitter amplifier, a change of 0.20.2 mA in the base current causes a change of 55 mA in the collector current. If input resistance is 2 kΩ2\ \mathrm{k\Omega} and voltage gain is 7575, the load resistance used in the circuit is

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  2. Question 2

    16 Apr 2026 S1

    148
    In a transistor amplifier, a change of 0.2 mA in the base current causes a change of 5 mA in the collector current. If input resistance is 2 kΩ2\ \mathrm{k\Omega} and voltage gain is 75, the load resistance used in the circuit is

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