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At least my oppinion without any garantuee: There can be a negative efficiency for example in the case of induction motors driver by inverter and FOC in generator mode. Since you have an induction motors you always have to provide some power in order to magnetize the rotor. The current which magnetizes the rotor causes losses. So there could be some working points where the losses caused due to the magnetization are bigger than the power generated (the negative torque taken away from the rotor).
What else can I help you with?
The work output of a machine divided by the work input is the?
efficiency.
What is the definition of mechanical efficiency?
Output work divided by input work
A point on the frontier of the production possibilities curve is?
Attainable and the economy is efficient. The line is actually where one would produce at maximum efficiency if it were possible to work at perfect effociency. Although, since we are human and make mistakes, it is impossible for anyone to work at the maximum efficiency.
What is an example of how division of work can improve efficiency in a team project?
An example of how division of work can improve efficiency in a team project is when each team member is assigned specific tasks based on their strengths and expertise. This allows for work to be completed more quickly and effectively, as each person can focus on their assigned responsibilities without overlapping or duplicating efforts.
What is efficiency effectiveness?
Efficiency effectiveness can only be measured by results; cost efficiency, time efficiency, output efficiency, etc.
Percentage of work in to work out?
I think it is efficiency.;)
What are the consequences of negative work done on a system?
The consequences of negative work done on a system can include a decrease in the system's energy, a decrease in the system's temperature, and a change in the system's state or properties. Negative work typically represents work done by the system on its surroundings, resulting in a loss of energy within the system. This can lead to a decrease in the system's overall performance or efficiency.
What is the efficiency of a simple machine?
Efficiency % = (work out / work in) * 100 (Work = force * distance)
What is efficiency of a simple machine?
Efficiency % = (work out / work in) * 100 (Work = force * distance)
What is the formula to finding the work output of efficiency?
The formula to find the work output of efficiency is: Work output = Efficiency x Input work. Efficiency is a ratio of output work to input work, so multiplying this ratio by the input work gives the work output.
A levers efficiency is 95 percent The work in is 95 J What is the work out?
To find the work out, you can use the formula for efficiency: Efficiency = (Work out / Work in) * 100. Given that the efficiency is 95%, you can rearrange the formula to find Work out as follows: Work out = (Efficiency / 100) * Work in. Substituting the values, you get Work out = (0.95) * 95 J = 90.25 J.
What is a percentage of work in to work out?
efficiency
How do you calculate spring efficiency?
Spring efficiency is calculated by dividing the work output of a spring by the work input. It is expressed as a ratio or percentage, with higher values indicating better efficiency. The formula is: Efficiency = (Work output / Work input) x 100%.
How do you determine mechanical thermal and relative efficiency?
Mechanical efficiency is determined by dividing the output work by the input work, while thermal efficiency is calculated by dividing the useful work output by the heat input. Relative efficiency is the ratio of mechanical efficiency to thermal efficiency and can be used to compare the effectiveness of a machine in converting input energy to useful work.
Which factor increases as the efficiency of a machine increases?
The output work done by the machine increases as the efficiency of the machine increases. This is because efficiency is the ratio of useful work output to the total work input, so as efficiency increases, more of the input work is converted into useful output work.
What is the mechanical efficiency of a machine that produces 400 joules of work output from work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
How is a machine's efficiency of a calculated?
Efficiency = useful output power / input power
