LIC-Differentiator

What is the output of a differentiator circuit?

• a DC voltage
• a square wave
• a differentiated output signal
• a sinusoidal wave

What is the transfer function of an ideal differentiator circuit?

• H(s) = s
• H(s) = 1/s
• H(s) = 1/(RCs)
• H(s) = s/RC

What is the frequency response of an ideal differentiator circuit?

• high-pass filter
• low-pass filter
• band-pass filter
• band-stop filter

What happens to the gain of a differentiator circuit at high frequencies?

• the gain increases
• the gain decreases
• the gain remains constant
• the gain becomes negative

What happens to the output of a differentiator circuit when the input is a square wave?

• the output is a square wave
• the output is a triangular wave
• the output is a pulse
• the output is a sine wave

What is the advantage of using an op-amp-based differentiator circuit?

• it has high input impedance
• it has low output impedance
• it has high gain
• it has low bandwidth

What is the disadvantage of using an op-amp-based differentiator circuit?

• it has limited bandwidth
• it has low input impedance
• it has low gain
• it is sensitive to noise

What is the output voltage of a differentiator circuit with an input voltage of V(t) = A sin(2πft)?

• Vout(t) = 2πfACos(2πft)
• Vout(t) = -2πfASin(2πft)
• Vout(t) = 2πfASin(2πft)
• Vout(t) = -2πfACos(2πft)

What is the effect of noise on the output of a differentiator circuit?

• it increases the amplitude of the output
• it decreases the amplitude of the output
• it introduces high-frequency noise
• it introduces low-frequency noise

What is a practical application of a differentiator circuit?

• differentiating audio signals
• measuring the velocity of a moving object
• detecting changes in temperature
• amplifying a low-level signal