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## Main Question or Discussion Point

suppose an amplifier with V+ is 2.5 volts

and V- is not connected.....V- and Voutput are connected by a resistor.

what is the voltage on the outpout of the op amp?

and V- is not connected.....V- and Voutput are connected by a resistor.

what is the voltage on the outpout of the op amp?