
Although some kinds of water pollution can occur through natural processes,it is mostly a result of human activities.We use water daily in our homes and industries. The amount of water used is about 150 gallons per day person in the country. For millions of years,the water we have has been able to do this because…

Fossil fuels i.e.,coal, petroleum and natural gas are the fuels of the modern day.Most of the urban population consumes energy from them.But these fossil fuels take several millions of years to form. These resources are those in limited supply and cannot be replaced. Once they are exhausted we will really be in trouble. Therefore,we should…

Right from childhood,an individual’s level of intelligence grows with age. I.Q. (Intelligence Quotient) is commonly used as measurement of an individual’s level of intelligence. I.Q. can be measured by a set of carefully designed tests,such as identifying objects, answering general questions and solving simple arithmetical or logical problems. If he performance of a child is…

Many SoCs use Linux as their operating system because its open source nature allows it to be easily customized and adapted to the architecture specific to a device.Linux has rich and somewhat complicated power management capabilities which would take an article of its own to describe in full.In this selection we will provide a very…

Arun Kumar Yadav National Winner The younger doodler from India, national winner, contributed his design for doodle4google and has been selected from India for the best design. The doodle theme for 2012… This year we are looking for doodles which show India’s “Unity in Diversity”. Bring alive the things you think are uniquely different and diverse, yet unite India and…

A roof is the protection from inclement weather. Possibilities are a lot of money decorating the interiors and facades of a home but think about if your roof starts leaking? By the point this happens, solving the problem without spending a big amount of cash might be difficult. As a possible should pay focus on…

For the business house important thing matters more than anything else. Main point here stands for net profit and net profit is the most important portion for each and every business. If you’re doing any type of business, then you should also think of ways to increase the net income or bottom line. How can…

The specifications of different types of power amplifiers are tabulated below- Class-A Power Amplifier (i) Output current flows during the entire cycle of the A.C. input signal. (ii) The operation of the amplifier is restricted to smaller central region of the load line,so that it can operate in the linear region of the load line. (iii) The circuit efficiency…

A class-C amplifier is one in which the operating point is selected so that the output current or voltage is zero for more than one half of an input sinusoidal signal cycle.This amplifier is the most efficient power amplifier.It can produce more load power than that of either class-A or class-B amplifier.A class-C amplifier has…

ADVANTAGES – (i) The circuit efficiency of a class-B push-pull amplifier is much higher than class-A amplifier.The reason for this is that no power is drawn from the D.C.power supply Vcc under no signal condition in class-B push-pull amplifier. (ii) The use of push-pull system in the class-B amplifier eliminates even order harmonics in A.C. output…