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The angle between voltage and current is known as power factor.
Power factor is a measure of how effectively electrical power is being used.
It is the cosine of the phase angle between voltage and current.
A power factor of 1 indicates a purely resistive load, while a power factor less than 1 indicates a reactive load.
Power factor can be improved by using power factor correction techniques such as capacitors.
For example, ...
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Polymorphism is the ability of an object to take on many forms. In C++, it is achieved through function overloading and virtual functions.
Polymorphism allows objects of different classes to be treated as objects of a common base class.
Function overloading enables multiple functions with the same name but different parameters.
Virtual functions allow derived classes to override base class functions.
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