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There are losses in any machinery- friction of moving parts, loss of heat from steam, a turbine will only capture PART of the energy of the water or steam striking it, and generators do not convert ALL mechanical energy to electricity. There is also electrical resistance in the cables.

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Why power plant are never 100 percent efficient?

Power plants are not 100% efficient because some energy is lost in the form of heat during the generation and transmission of electricity. This loss occurs due to factors such as friction, resistance in the electrical lines, and limitations in converting heat to electricity. Additionally, no machine or system can operate without any losses due to the laws of thermodynamics.


Can a machine ever be 100 percent efficient?

No, a machine can never be 100 percent efficient due to various factors such as friction, heat loss, and other sources of energy dissipation. These factors inevitably lead to some level of energy loss, making perfect efficiency unattainable in real-world machines.


Why is a machine always less than 100 percent efficient?

Machines are never 100% efficient due to factors such as friction, heat loss, and mechanical limitations. Some amount of energy will always be lost during the transfer or transformation process, making it impossible for a machine to achieve perfect efficiency.


What must take place in order for work to be done?

Energy in some form must be expended, if the machine is 100 percent efficient the work done in Joules will equal the energy input in Joules, but of course machines are never 100 percent efficient, there are always some losses.


What temperature is required to transfer waste heat to the environment for a heat engine to be 100 percent efficient?

A heat engine can never be 100% efficient due to the second law of thermodynamics, which states that some heat energy will always be lost to the surroundings. The temperature required for maximum efficiency is the temperature of the heat source for the engine. The efficiency of a heat engine is determined by the temperature difference between the heat source and the environment.

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Why may an electrical heater be 100 percent efficient?

An electrical heater can be 100 percent efficient because all of the electrical energy provided to the heater is converted into heat. This occurs when there are no energy losses due to factors such as resistance in wires or inefficient components within the heater.


Why power plant are never 100 percent efficient?

Power plants are not 100% efficient because some energy is lost in the form of heat during the generation and transmission of electricity. This loss occurs due to factors such as friction, resistance in the electrical lines, and limitations in converting heat to electricity. Additionally, no machine or system can operate without any losses due to the laws of thermodynamics.


Can a machine ever be 100 percent efficient?

No, a machine can never be 100 percent efficient due to various factors such as friction, heat loss, and other sources of energy dissipation. These factors inevitably lead to some level of energy loss, making perfect efficiency unattainable in real-world machines.


Why is a machine always less than 100 percent efficient?

Machines are never 100% efficient due to factors such as friction, heat loss, and mechanical limitations. Some amount of energy will always be lost during the transfer or transformation process, making it impossible for a machine to achieve perfect efficiency.


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