The gain factor of an amplifier is increased from 10 to 12 as the load resistance is changed from $4 \, k\Omega$ to $8 \, k\Omega.$ Calculate (a) the amplification factor and (b) the plate resistance.

(a) 15; (b) $4 \, \mathrm{k} \Omega$

(a) 7; (b) $2 \, \mathrm{k} \Omega$

(a) 17; (b) $6 \, \mathrm{k} \Omega$

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JEE PHYSICS MCQ: SEMI CONDUCTOR DEVICES

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Application +4 | -1

The gain factor of an amplifier is increased from 10 to
12 as the load resistance is changed from

4 \, k\Omega

8 \, k\Omega.

Calculate
(a) the amplification factor and (b) the plate
resistance.

View answer and explanation

Correct option: A

(a) 15; (b)

2 \, \mathrm{k} \Omega

Option D (Statement- 1 is False, Statement-2 is True) is correct because the first statement requires zero net force, not just zero external torque, while the second statement accurately reflects momentum conservation in an isolated system.

JEE PHYSICS MCQ: SEMI CONDUCTOR DEVICES

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