LIC-Subtractor

In a subtractor circuit using an operational amplifier, what is the function of the first input signal?

• Provides a reference voltage
• Provides the signal to be subtracted
• Amplifies the output voltage
• Grounds the circuit

What is the purpose of the second input signal in a subtractor circuit using an operational amplifier?

• Provides a reference voltage
• Provides the signal to be subtracted
• Amplifies the output voltage
• Grounds the circuit

In a subtractor circuit, what is the effect of increasing the resistance of the feedback network?

• Increases the output voltage
• Decreases the output voltage
• Has no effect on the output voltage
• Inverts the output voltage

What is the transfer function of an ideal subtractor circuit?

• Vout = V2 - V1
• Vout = V1 + V2
• Vout = V2 / V1
• Vout = V1 - V2

In a subtractor circuit using an operational amplifier, what happens if the input signal voltages are equal?

• The output voltage is zero
• The output voltage is positive
• The output voltage is negative
• The circuit does not work

What is the advantage of using an operational amplifier for subtraction instead of using a passive resistor network?

• Better accuracy and stability
• Lower cost and simpler design
• Higher output voltage
• Faster response time

What is the purpose of the inverting amplifier stage in a subtractor circuit using an operational amplifier?

• To amplify the input signals
• To subtract the input signals
• To buffer the output signal
• To provide voltage gain

In a subtractor circuit, what is the effect of decreasing the resistance of the feedback network?

• Increases the output voltage
• Decreases the output voltage
• Has no effect on the output voltage
• Inverts the output voltage

In a subtractor circuit using an operational amplifier, what is the effect of decreasing the value of Rf?

• Increases the output voltage
• Decreases the output voltage
• Has no effect on the output voltage
• Inverts the output voltage

What is the output voltage of a subtractor circuit using an ideal operational amplifier if the input signals are V1 = 2 V and V2 = 5 V?

• -3 V
• -2 V
• 2 V
• 3 V