Recent questions tagged waveforms

Description : Draw the block diagram of regulated power supply, explain function of each block and draw waveforms of each stage.

Last Answer : 1. A step down transformer 2. A rectifier 3. A filter 4. A regulator Operation of Regulated Power Supply:- Step Down Transformer:- A step down transformer will ... regulator. A regulator will maintain the output constant even when changes at the input or any other changes occur.

Description : State different types of electrical signal and draw all types of waveforms.

Last Answer : Types of electrical signals 1) Sine wave 2) Triangular wave 3) Square wave Waveforms

Description : What is Phase sequence? Draw waveforms of 3 phase emf.

Last Answer : Phase sequence: It is the order in which the three phases reach their peak or maximum values. It is shown in below fig. the phase sequence is A-B-C (or R-Y-B). In the following waveforms, it is ... 120º, B- phase voltage attains its positive maximum value. So the phase sequence is R-Y-B. 

Description : In which of the following waveforms is RMS voltage equal to the average voltage? A) Triangle wave B) Square wave C) Sine wave D) None of these

Last Answer : In which of the following waveforms is RMS voltage equal to the average voltage? A) Triangle wave B) Square wave C) Sine wave D) None of these

Description : Which of the following waveforms has the lowest form factor? A) Sine wave B) Square wave C) Sawtooth wave D) Triangle wave

Last Answer : Which of the following waveforms has the lowest form factor? A) Sine wave B) Square wave C) Sawtooth wave D) Triangle wave