Physics · Electronics
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The open loop gain of an op-amplifier is of the order of:
- A
105
- B
106
- C
10-5
- D
10-6
The open-loop DC gain (usually referred to as AVOL and sometimes as forward gain) is the gain of the amplifier without the feedback loop being closed, hence the name “open-loop.”
The main function of an operational amplifier is to amplify the input signal and the more open loop gain it has the better. Open-loop gain is the gain of the op-amp without positive or negative feedback and for such an amplifier the gain will be infinite but typical real values range from about 20,000 to 200,000.
b) 10^6:
This option suggests that the open-loop gain of an op-amp is of the order of 10^6. Again, this value is within the typical range for the open-loop gain of many op-amps. Higher gain values allow for greater amplification of input signals.
c) 10^-5:
This option suggests that the open-loop gain of an op-amp is of the order of 10^-5. However, it is unusual for the open-loop gain of an op-amp to be expressed with a negative exponent. Op-amps typically have positive gain values.
d) 10^-6:
This option suggests that the open-loop gain of an op-amp is of the order of 10^-6. Similar to option c, a negative exponent is uncommon for expressing the open-loop gain of an op-amp. Positive gain values, often in the order of 10^5 or 10^6, are more typical.
Tagged under Physics · Electronics · 2017