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Author Archives: admin

dot product and cross product of vectors

Dot product and cross product are two types of vector product.The basic difference between dot product and scalar product is that dot product always gives scalar quantity while cross product always vector quantity.Dot product is always used to calculate angle between two vectors. What is dot product of two vectors? When two vectors are multiplied with each other and answer ...

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Different types of waves in physics with examples

Waves transport energy without transporting matter. The energy transportation is carried by a disturbance,which spreads out from a source.Basically there are there are three types of waves.Mechanical waves,electromagnetic waves and matter waves.These type of waves are well explained below. We are well familiar with different types of waves such as water waves in the ocean, or gently formed ripples on ...

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Difference between impulse turbine and reaction turbine

The basic difference between impulse and reaction turbine is that in impulse turbine steam flows through nozzle and impinges in moving blades,while in reaction turbine Steam flows initially from guide mechanism and then from moving blades. Following are the some points of comparison between an impulse and reaction turbine. Impulse Turbines In impulse turbine steam flows through nozzle and impinges in moving blades. ...

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Diesel engine Vs Petrol engine

The basic difference between diesel engine and petrol engine is that Diesel engine draws air during suction stroke,low speed engine and costly than petrol engine,while petrol engine draw mixture of petrol and air and are high speed engines.       Diesel Engine properties Diesel engine only draws air during suction stroke. The fuel is injected in the form of ...

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Difference between gas turbine and steam turbine in tabular form

The basic difference between gas turbine and steam turbine is that  gas turbine is easy to start and control easily while steam turbine is difficult to start and difficult to control. Idea of gas turbine is very old one,its working principle is an advanced version of wind mill.To achieve efficient working of turbine,the movement of  gas is controlled and directed ...

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Difference between forward bias and reverse bias of semiconductor diode

The difference between forward bias and reverse bias is that in forward biasing positive terminal of the battery is connected with p-type and negative terminal is connected with n-type of semiconductor,while in reverse biasing positive terminal of battery is connected with n-type and negative terminal is connected with p-type. The bias a diode,you apply a dc voltage across it. Forward ...

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Newton’s three laws of motion with examples and applications

Newton’s three laws of motion are the 3 physical laws ,these laws of motion laid the foundation for classical mechanics.These laws explain the relation between forces and the body on which these forces acted upon.Newton’s first law of motion gives the qualitatively definition of force,Newton’s second law of motion gives the quantitative measure of the force,while Newton’s third law of ...

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Types of forces with examples and pictures

Force is the external agent which produces motion or tends to produce motion or it stops motion or tends to stop motion.Basically there are two types of forces,contact forces and non contact forces.Gravitational force,electric force,magnetic force,nuclear force,frictional force are some examples of force. Now! We learn in detail about kinds of force…… Here’s the deal: What is Force? “A force ...

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What is difference between step up and step down transformer?

Transformer is an electrical device which is used to step up or step down ac voltage.There are two types of transformer,step up and step down.The difference between step up and step down transformer is that step up transformer increases the input voltage and step down transformer decreases the input voltage. Step up transformer If (Ns greater than NP) and (Vs is greater ...

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Magnetic hysteresis loop for ferromagnetic materials

The value of flux density for any value of current is always greater when the current is decreasing ,then when it is increasing magnetism lags behind the magnetizing current.This process is known as hysteresis. Hysteresis Loop definition To investigate a ferromagnetic material, a bar of that material such as iron is placed in an alternating current solenoid. When the alternating ...

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