If All Four Input Resistors to a Summing Amplifier Are $\mathrm { k } \Omega$

question 131

Multiple Choice

If all four input resistors to a summing amplifier are 2.2 $\mathrm { k } \Omega$ and the feedback resistor is 2.2 $\mathrm { k } \Omega$ . then the gain equals________

• A) 4
• B) 2.2
• C) 1
• D) unknown