Figure $18

Question

Figure $18 < 1$ -What trouble in the amplifier in Figure 18-1(b) could cause the voltage between the inverting and non-inverting inputs to nearly equal 0 V ? A) R_i is open. B) R_f is open. C) The power is off. D) There is no problem; 0 V is normal.

Quizplus · Accepted Answer

The voltage between the inverting and non-inverting inputs of an operational amplifier (op-amp) being nearly 0 V is normal due to the concept of virtual short, which is a characteristic of the ideal op-amp in a closed-loop configuration. This condition indicates that the op-amp is functioning correctly to maintain its inputs at the same voltage.

Figure 18<118 < 118<1 -What Trouble in the Amplifier in Figure 18-1(b) Could Cause

Figure $18 < 1$ -What Trouble in the Amplifier in Figure 18-1(b) Could Cause