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This question belongs to Electrical Engineering OP Amp

OP amp

?

For an OP-amp having differential gain A_v and common mode gain A_c the CMRR is given by

A) $${{\text{A}}_{\text{V}}} + {{\text{A}}_{\text{C}}}$$ B) $$\frac{{{{\text{A}}_{\text{V}}}}}{{{{\text{A}}_{\text{C}}}}}$$ C) $${{\text{A}}_{\text{V}}} + \frac{1}{{{{\text{A}}_{\text{C}}}}}$$ D) $$\frac{{{{\text{A}}_{\text{C}}}}}{{{{\text{A}}_{\text{V}}}}}$$

Answer & Solution

Correct Answer: Option B

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