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An ideal operational amplifier has input impedance of
- a)1 MΩ
- b)infinity
- c)1 Ω
- d)zero
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
An ideal operational amplifier has input impedance ofa)1 MΩb)inf...
For an ideal OPAMP, input impedance is infinite while output impedance is zero.
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An ideal operational amplifier has input impedance ofa)1 MΩb)inf...
Input Impedance of an Ideal Operational Amplifier
Ideal operational amplifiers have characteristics that make them highly desirable for many applications. One important feature of an ideal operational amplifier is its input impedance.
Input Impedance
Input impedance refers to the impedance seen by the signal source when it is connected to the input of the operational amplifier. Ideally, the input impedance of an operational amplifier should be infinite.
Explanation
An ideal operational amplifier has infinite input impedance, which means that it draws zero current from the input signal source. This is beneficial because it allows the operational amplifier to have no loading effect on the signal source, ensuring that the input signal remains unchanged.
Benefits
Having infinite input impedance also means that the input impedance of the operational amplifier does not affect the circuit it is connected to. This property is particularly useful in applications where the input signal source has a high impedance and needs to be preserved.
Conclusion
In conclusion, an ideal operational amplifier has an input impedance of infinity, which is a key characteristic that makes it highly versatile and suitable for a wide range of applications in electronics and communication engineering.
Ideal operational amplifiers have characteristics that make them highly desirable for many applications. One important feature of an ideal operational amplifier is its input impedance.
Input Impedance
Input impedance refers to the impedance seen by the signal source when it is connected to the input of the operational amplifier. Ideally, the input impedance of an operational amplifier should be infinite.
Explanation
An ideal operational amplifier has infinite input impedance, which means that it draws zero current from the input signal source. This is beneficial because it allows the operational amplifier to have no loading effect on the signal source, ensuring that the input signal remains unchanged.
Benefits
Having infinite input impedance also means that the input impedance of the operational amplifier does not affect the circuit it is connected to. This property is particularly useful in applications where the input signal source has a high impedance and needs to be preserved.
Conclusion
In conclusion, an ideal operational amplifier has an input impedance of infinity, which is a key characteristic that makes it highly versatile and suitable for a wide range of applications in electronics and communication engineering.
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An ideal operational amplifier has input impedance ofa)1 MΩb)infinityc)1 Ωd)zeroCorrect answer is option 'B'. Can you explain this answer?
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