A bandpass filter having a center frequency of 25 kHz and bandwidth of 5 kHz is classified as: Narrow-band pass Wide-band pass Any of these None of these Correct answer: 2. Wide-band pass Explanation: Q = fo/BW = 25 kHz/5 kHz = 5 If Q<5, the filter is classified as wide-band pass filter
The center frequency of a bandpass filter is 20 kHz and bandwidth of 4 kHz. The Q of filter is: 0.2 40 24 5 Correct answer: 4. 5 Explanation: Q = fo / BW where fo = frequency BW = Bandwidth Q = 20/4 = 5
The length of transmission line which will be more impacted by the Ferranti effect: 100 km 200 km 350 km 499 km Correct answer: 4. 499 km The longer the transmission lines are, the more is the capacitance is, and the higher the capacitance is, the more is the Ferranti effect. Ferranti effect is defined … Read more
The SI unit of conductance is: Henry Tesla Siemens Ohms Correct answer: 3. Siemens The SI unit of conductance is Siemens. The conductance of a material is defined as the measure of a material’s ability to allow the flow of charge. It is represented using symbol G. In mathematical terms it is defined as the … Read more
The ohmmeter connects in: Series Parallel Correct answer: 2. Parallel The ohmmeter connects across the components whose resistance measurement is desired.
Voltage Remains Same in: Series Circuits Parallel Circuits Correct answer: 2. Parallel circuits In parallel circuits the voltage always remains same.
Sallen-Key low-pass filter has roll-off: -10 dB/decade -20 dB/decade -30 dB/decade -40 dB/decade Correct answer: 4. -40 dB/decade
Sallen-Key low-pass filter belongs to which class: First order Second order Third order Fourth order Correct answer: 2. Second order
Single-pole low-pass filters have roll-off: -10 dB/decade -20 dB/decade -30 dB/decade -40 dB/decade Correct answer: 2. -20 dB/decade
Sallen-Key low pass filter is also known as: VCVS filter VCCS filter CCVS filter CCCC filter Correct answer: 1. VCVS filter VCVS stands for voltage-controlled voltage source