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If one joule of work is done in one second by any agent then its power is said to be one watt.
Kilowatt and megawatt are higher units of power. Another unit of power is horse power 1 horse power = 746 watts..
Kilowatt and megawatt are higher units of power. Another unit of power is horse power 1 horse power = 746 watts..Thus, if one joule of work is done in one second by any agent then its power is said to be one watt.
Kilowatt and megawatt are higher units of power. 1 kilowatt (KW) = 10 3 watts 1 Megawatt (MW) = 10 6 watts Another unit of power is horse power (h.p) 1 h.p. = 746 watts..
Electric Power
Power is the rate of doing work or in other words, it is the work done in one second. If a current of 'I' amperes flows through a conductor of resistance 'R' ohm for a time 't' seconds when the potential difference across its ends is 'V' volt, then the electric power consumed P..
Electric Power
Electric Power - The power is the rate of doing work or in other words, it is the work done in one second. If a current of 'I' amperes flow through a conductor of resistance 'R' ohm for a time 't' seconds when the potential difference across its ends is 'V' volt, then the electr..
Electric Power - The power is the rate of doing work or in other words, it is the work done in one second. If a current of 'I' amperes flow through a conductor of resistance 'R' ohm for a time 't' seconds when the potential difference across its ends is 'V' volt, then the electr..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..
Work done in unit time or rate of doing work is defined as power.
Power is denoted by the letter 'P'. SI unit of power SI unit of work is joule and time is second. Therefore, SI unit of power is joule/second. 1 joule/second = 1 watt..
Question 5
Question: Define watt and watt hour. Answer: Watt is the unit of power. If 1 joule of energy is consumed in 1 second, we say the power of the device is 1 watt. Watt hour is the unit of energy. If a device with a p..
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
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 ..
Question 6
Question: SI unit of the power of a lens is ___________. 1. dioptre 2. cm 3. metre 4. watt Answer: ..
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