Static Electrical

What is an Open Circuit ? Definition Open Circuit Characteristics (O.C.C) refer to the relationship between the generated voltage (EMF) and the field current in a generator (especially a DC generator), when the armature is running at a constant speed and no load is connected. This is also called the no-load characteristic of a generator. … Read more

1. Measurement and Instrumentation Measurements Measurement is the process of determining the magnitude of a physical quantity by comparing it with a standard unit. It provides the base for science, technology, and engineering decisions. Significance of Measurements Measurement is important for accuracy, quality control, system performance evaluation, and research. It supports innovation and ensures reliable, … Read more

The power losses in a transformer are of two types: (i) Core or Iron Losses (Pi): Iron or core losses consist of: Pi $$ P_i = \text{Hysteresis loss} + \text{Eddy current loss}\quad = \text{Constant losses} $$ These can be determine by open circuit test . Hysteresis Loss: where: Eaddy Current Loss: $$ Khf ^{2}\mathrm{B}_{m}^{2}t^{2}watt/m^{3} = … Read more

Data transfer instructions move the content of one register to another. The register the content of which is moved remains unchanged. If they have the suffix “X” (MOVX), the data is exchanged with external memory. Mnemonic Description Byte Cycle MOV A, Rn Moves the content of register to the accumulator 1 1 MOV A, direct … Read more

DC generator MCQ 70 Most Important Qustion of DC Category 1: Construction and Components (10 Questions) 1. What is the main function of a DC generator? a) Convert electrical energy to mechanical energy b) Convert mechanical energy to electrical energy c) Store electrical energy d) Regulate voltage Answer: b) Convert mechanical energy to electrical energy … Read more

MCQ on Zener diode, Rectifier and Filters