IGCSE A Level Physics MCQs - Chapter 12
Electronics Multiple Choice Questions (MCQs) PDF Download - 5
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Electronics Questions & Answers PDF Download: MCQ Quiz 5
MCQ 21: Output current from an LED is
- 20 mA
- 30 mA
- 40 mA
- 50 mA
MCQ 22: In an inverting amplifier the non-inverting input (+) is connected to
- 1 V line
- 0 V line
- 2 V line
- 3 V line
MCQ 23: Actual op-amp may have an open loop gain of
- 10²
- 105
- 10³
- 104
MCQ 24: Coil of relay is connected to the
- input of op-amp
- output of op-amp
- midpoint of op-amp
- anywhere in between input and output of op-amp
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