Related Questions

To understand how the output voltage is shaped by a differentiator, you must consider
A The response to the rising pulse edge
B The response between the rising and falling edges
C The response to the falling pulse edge
D All of the above
Lubana purchased 20 kg of pulses at a rate of Tk. 14.25 per kg and 30 kg of pulses at a rate of TK. 11.50 per kg.She decided to mix the two and sold the mixture. To make a profit of 30% what price per kg should he sell the mixture ?
A 15.60
B 14.80
C 16.38
D 18.20
Three maths classes: X, Y, and Z take an algebra test. The average score of class X is 83. The average score of class Y is 76. The average score of class Z is 85. The average score of class X and Y is 79 and the average score of class Y and Z is 81. What is the average score of the combined classes X, Y, and Z?
A 81
B 81.5
C 82
D 84.5
Three math classes , X, Y , and Z, take an algebra test. The average score in class X is 83. The average score in class Y is 76. The average score in class Z is 85. The average score of all students in classes X and Y together is 79. The average score of all student classes Y and Z together is 81. What is the average for all the three classes?
A 81
B 81.5
C 82
D 84.5
A differentiator is usually not a part of a control system because it
A Reduces damping
B Reduces the gain margin
C Increases input noise
D Increases error
In an OP-amp differentiator
A The amplitude of output is proportional to rate of change of input
B The amplitude of output is proportional to input
C Output occurs when input is finite and constant
D Polarity of input and output is the same
An RC differentiator acts as a
A Low-pass filter
B High-pass filter
C Band-pass filter
D Band-stop filter
In an RC differentiator, the capacitor.
A Charges exponentially at a rate depending on the RC time constant
B Charges exponentially at a rate depending on the input voltage
C Charges when the input voltage is decreasing
D Charges to approximately one time constant
In an RL differentiator, when the input pulse goes from its low level to its high level,
A The inductor prevents a sudden change in voltage
B The inductor prevents a sudden change in current
C Voltage across the inductor instantly reaches 63% of input voltage
D Voltage across the inductor is zero
In an RC differentiator, the sum of the capacitor voltage and the resistor voltage at any instant.
A Must be zero
B Must be equal to the applied voltage
C Is less than the applied voltage but greater than zero
D Cannot be determined

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