After reading this article, you shall be able to: Convert between binary and decimal numbers. Convert between decimal and binary fractions. Convert between binary and hexadecimal numbers. Convert between decimal and hexadecimal numbers. Convert between binary and octal numbers. Convert between binary and BCD numbers. The decimal number system is fine for calculations done by… Read More »
The one main disadvantage of binary numbers is that the binary string equivalent of a large decimal base-10 number can be quite long. When working with large digital systems, such as computers, it is common to find binary numbers consisting of 8, 16 and even 32 digits which makes it difficult to both read and… Read More »
There are different numbering systems used in digital electronic circuits and computers. However, the numbering system used in one type of circuit may be different to that of another type of circuit, for example, the memory of a computer would use hexadecimal numbers while the keyboard uses decimal numbers. The different number systems are Decimal… Read More »
Because of its widespread use, we will concentrate on addition and subtraction for Two’s Complement representation. The nice feature with Two’s Complement is that addition and subtraction of Two’s complement numbers works without having to separate the sign bits (the sign of the operands and results is effectively built-into the addition/subtraction calculation). Remember: −2n−1 ≤ Two’s… Read More »
Section 1: Electrical interview questions and answers about switchgear and protection What are the functions of protective relays? To detect the fault and initiate the operation of the circuit breaker to isolate the defective element from the rest of the system, thereby protecting the system from damages consequent to the fault. Give the consequences of… Read More »
Everyone of us about the decimal numbers i.e. 1, 2, 3, 4, 5, etc. However, there are many other numeral systems that exist, like hexadecimal numbers for example:3F2Bor binary numbers for example:10101011.Some may think these numbers cryptic and meaningless. These hexadecimal or binary code numbers can easily be converted to the well-known decimal numbers. Then… Read More »