141. If the input to differentiating circuit is a sawtooth wave, then the output will be ______ wave.

**142.** In an RC differentiator, the capacitor

**143.** The operational amplifiers are seldom used for differentiation because

**144.** If OP-amp is ideal and Vi is a triangular wave then V0 will be:

145. Differentiation amplifier produces

A. Output waveform as the integration of input waveform

B. Input waveform as the integration of output waveform

C. Output waveform as derivative of the input waveform

D. Input waveform as derivative of the output waveform

146. Determine the output voltage of the differentiator?

A. V_{O} = R_{F}×C_{1}×[dV_{in}/dt].

B. V_{O} = -R_{F}×C_{1}×[dV_{in}/dt].

C. V_{O} = R_{F}×C_{F}×[dV_{in}/dt].

D. None of the mentioned

147. which factor makes the differentiator circuit unstable?

A. Output impedance

B. Input voltage

C. Noise

D. Gain

148. The increase in the input frequency of the differentiation amplifier to input impedance creates

A. Component noise

B. External noise

C. Low-frequency noise

D. High-frequency noise

149. Calculate the gain limiting frequency for the circuit

A. 15.64Hz

B. 23.356Hz

C. 33.89Hz

D. None of the mentioned

149. The stability and high-frequency noise problem are corrected by

A. Adding feedback capacitor

B. Feedback capacitor and an internal resistor

C. Feedback capacitor and feedback resistor

D. Internal capacitor and internal capacitor

150. Select the order in which the frequency should be maintained to enhance the stability of the differentiator? Where f_{a} -> Frequency at which gain =0 ; FB -> Gain limit frequency ; f_{c} -> Unity gain bandwidth.

A. f_{a}b c

B. f_{a} > f_{b} > f_{c}

C. f_{b}c > f_{a}

D. f_{b}c a

151. Which application uses a differentiator circuit?

A. None of the mentioned

B. FM modulators

C. Wave generators

D. Frequency Shift keying

152. Choose the value of R_{F} and C for a 5kHz input signal to obtain good differentiation.

A. R_{F} = 1.6×10^{3}Ω, C_{1} = 33×10^{-6}F

B. R_{F} = 1.6×10^{3}Ω, C_{1} = 0.47×10^{-6}F

C. R_{F} = 1.6×10^{3}Ω, C_{1} = 47×10^{-6}F

D. R_{F} = 1.6×10^{3} Ω, C_{1} = 10×10^{-6}F

153. Determine the transfer function for the practical differentiator

A. V_{o}(s) /V_{1}(s) = -S×R_{F}×C_{1}/(1+R_{1}×C_{1})^{2}

B. V_{o}(s) /V_{1}(s) = -S×R_{F}×C_{1}/(1+R_{F}×C_{1})^{2}

C. V_{o}(s) /V_{1}(s) = -S×R_{F}×C_{1}/(1+R_{1}×C_{F})^{2}

D. None of the mentioned