For non-inverting operational amplifiers, if R1 is infinite and R2 is 0 ohm, then the gainof amplifier is
Correct answer: C. +1
- A. -1
- B. 0
- C. +1
- D. infinite
Explanation
In a non-inverting operational amplifier, the gain is given by 1 + (R2/R1). If R1 is infinite (open circuit) and R2 is 0 ohm (short circuit), the gain simplifies to 1 + (0/infinity) = 1. This configuration implies a unity gain buffer where the input is directly transferred to the output without amplification or inversion. The other options are incorrect because they do not reflect the conditions of the non-inverting amplifier with the given resistor values.
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Rectification converts alternating current into unidirectional current using semiconductor diodes. The content includes half wave and full wave rectifiers, bridge circuits, output waveforms, ripple and smoothing with capacitors, with the difference between rectification and voltage regulation kept clear.
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