The arithmetic of alternating voltage or current
Suppose we have a sine wave a.c. voltage with amplitude V0, V = V0sin(w.t). If this voltage is applied to a resistor, the average power dissipated is the mean value of I2.R, or using Ohm’s law, the mean value of square of V divided by R. Therefore, the algebraic function of the a.c. voltage that plays the same role as a d.c. voltage in dissipating power is the square root of the mean square voltage. This is abbreviated as the root mean square a.c. voltage, or Vrms. On your a.c. meter it is simply a.c. volts. Your meter is designed to directly read Vrms if a sinusoidal a.c. voltage at a frequency near 50 Hz is applied.
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What is electric current and voltage? Fundamental tutorials on basic concepts of current and voltage
We shall start right from the basic concept of voltage and current. Please note that the approach of this article is to provide simple and conceptual ideas about electricity. So don’t try to over-cross this article and please don’t downpour with your comments on the same.
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How to prepare for HSC Board practical examination, successfully?
Guidelines for successful write-up in any practical examination…
Impress your teacher…
Show your skills and ideas…
The correct way of writing the experiment, that you perform, in your answer paper, is very easy thing. Only some systematic understanding is essential.
First of all, write down the following…
Name of the experiment:
Aim of the experiment:
Apparatus used:
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What are the disadvantages of amplitude modulation?
The major disadvantages of amplitude modulation is that it is easily affected by atmospheric noise, other electrical signals and interference from electrical motors and generators. Practically, various types of atmospheric and other electrical disturbances are also reproduced in the amplitude modulation receivers. Hence, AM receiver can not distinguish between amplitude variations that represent the noise and those that contain the desired signal. Therefore, the reception is generally noisy.
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How to make remote controlled land rover using simple assembly kit
A remote control vehicle is defined as any mobile device that is controlled by a means that does not restrict its motion with an origin external device. A remote controlled vehicle (RCV) differs from robot as the RCV is always controlled by a human and takes no positive action autonomously. It is vital that a RCV should be capable of proceeding accurately to a target area; maneuvering within that area to fulfill its mission and returning equally accurately and safely to base.
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Guidelines for preparing project report for all students
Read the entire article very carefully. Then follow each step during the preparation of your project report. This will be easy to complete it.
Identify the semiconductors used in your project and list them on a piece of paper.
Search about each semiconductor on Google.
For example, suppose you have IC 555 used in your project.
Then type code number IC 555 in Google and check the googled results.
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The logic behind robotics
Robotics is the step by step analytical study of logical implementation of different conditions to achieve a particular task. For this, we have to create a systematic plan to handle the given task, work on it step-by-step and the come up with successful results. The logic of robotics starts with the three famous laws of robotics. They are as follows. These laws are actually a set of rules devised by the most popular science fiction author Isaac Asimov. The rules were introduced in his 1942 short story “Run Around” and “The Naked Sun”. The Three Laws are:
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What is the difference between microcontroller and microprocessor?
Microcontrollers are used in automatically controlled products and devices, such as automobile engine control systems, implantable medical devices, remote controls, office machines, appliances, power tools, toys, embedded systems and a number of others. By reducing the size and cost compared to a design that uses a separate microprocessor, memory, and input/output devices, microcontrollers are very economical for digitally controlled machines, even more devices and processes.
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What are the types of robots?
1. Stationary: These robots remain fixed in one place. Some of the robots that fall under this category are robotic arm, computerized machines and industrial robots.
2. Ground: These robots are mobile i.e. they can move from one place to other. They can be sub divided on the basis of their drive assembly like wheels, tacks and legs.
3. Underwater: These robots are designed to operate underwater. They are also called Autonomous Underwater Vehicles. There anatomy is water proof i.e. shielded from outside.
4. Aerial: Also called Unmanned Aerial Vehicles, this category includes robotic flying machines.
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Learn Robotics from scratch, fundamentals of robotics
Robotics is the extended branch of Electronics and Computer Science, both. It is the study of both hardware and software. An automatic apparatus or device that performs functions ordinarily ascribed to humans or operates with what appears to be almost human intelligence. In simple language, any machine having certain mechanical movements through electronic circuits and software, either self controlled (autonomous) or remote controlled can be treated as a robot.
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