Q29.In a CE transistor amplifier, the audio signal voltage across the collector resistance of 2 kΩ is 2 V, if the base resistance is 1 kΩ and the current amplification of the transistor is 100 then the input signal voltage is (1) 10 mV (2) 1 mV (3) 0 .1 V (4) 1 V
What This Question Tests
This problem tests the basic calculations for a Common Emitter transistor amplifier, specifically relating input and output voltages and currents using the current amplification factor and resistances.
Concepts Tested
Formulas Used
V_out = I_c * R_c
I_c = β * I_b
V_in = I_b * R_b
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📋 Question Details
- Chapter
- Semiconductor
- Topic
- Transistor amplifier
- Year
- 2019
- Shift
- 12 Apr Shift 2
- Q Number
- Q29
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 14: Semiconductor Electronics: Materials, Devices and Simple Circuits
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