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Electric Power
'. 1 watt = Thus if a potential difference of 1 volt causes a current of 1 ampere to flow through a wire, the electric power consumed by the wire is 1 watt. The SI unit of electric power is watt (W). It is the power consumed by a device th..
'. 1 watt = Thus if a potential difference of 1 volt causes a current of 1 ampere to flow through a wire, the electric power consumed by the wire is 1 watt. The SI unit of electric power is watt (W). It is the power consumed by a device th..Work, Energy and Power Summary
Potential energy is the energy possessed by an object by virtue of its position or condition. Kinetic energy = 1/2 mv 2 Potential energy = mgh Law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another. Power is th..
Potential energy is the energy possessed by an object by virtue of its position or condition. Kinetic energy = 1/2 mv 2 Potential energy = mgh Law of conservation of energy states that energy can neither be created nor destroyed but can be transformed from one form to another. Power is th..Average Power Associated with LCR Circuit in Series
In an electrical circuit, energy is supplied by the source of EMF, stored by the capacitive and inductive elements and dissipated in resistive elements. Conservation of energy requires that, at any particular time, the rate at which energy is supplied by the source of EMF must e..
In an electrical circuit, energy is supplied by the source of EMF, stored by the capacitive and inductive elements and dissipated in resistive elements. Conservation of energy requires that, at any particular time, the rate at which energy is supplied by the source of EMF must e..Sources of Energy Summary
Energy - Energy can be defined as the ability to do work. A good source of energy would be the one which would: do a large amount of work per unit volume or mass be easily accessible be easy to store and transport and be economical Fossil Fuel Fossil fuel is a hydrocarbon deposit, such as..
Electric Generator (AC)
The electric generator converts mechanical energy into electrical energy. The two types of generators are DC and AC generators: DC Generators - A cycle dynamo and a car dynamo are examples of DC generators. They produce DC AC Generat..
AC Circuit with Pure Capacitance only
Let an AC source be connected across pure inductive element. If E = E o sin w t then, q = EC = CE o sin w t I = I o cos w t Here I o = E o C w = E o C w plays the role of a resistance and is known as capacitive reactance X c ...
Let an AC source be connected across pure inductive element. If E = E o sin w t then, q = EC = CE o sin w t I = I o cos w t Here I o = E o C w = E o C w plays the role of a resistance and is known as capacitive reactance X c ...Direct Current and Alternating Current
If the current flows always in the same direction, it is called 'direct current'. Direction current is represented as DC or dc. The current derived from a cell or a battery is direct current - since it is unidirectional. The positive and negative terminals are fixed. If the curr..
If the current flows always in the same direction, it is called 'direct current'. Direction current is represented as DC or dc. The current derived from a cell or a battery is direct current - since it is unidirectional. The positive and negative terminals are fixed. If the curr..Direct Current and Alternating Current
If the current flows always in the same direction, it is called 'direct current'. Direction current is represented as DC or dc. The current derived from a cell or a battery is direct current - since it is unidirectional. The positive and negative terminals are fixed. If th..
Commercial Unit of Electrical Energy
Commercial Unit of Electrical Energy - The unit 'watt' is very small. Therefore, in actual practice we use a much larger unit called 'kilowatt'. It is equal to 1000 watts. Since electrical energy is the product of power and time, watt hour (W h) can also be c..
Commercial Unit of Electrical Energy
Kilowatt - hour is the commercial unit of electrical energy. We have seen that power is the rate of energy consumed or delivered. If 1 joule of energy is used per second, we say that energy is used at the rate of 1 watt. In other words, if energy is used at the rate of 1 wa..
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