Discuss why, to drive this machine, the diesel engine would need to be fitted with a flywheel. In your answer you should explain • why the electric motor does not require a flywheel • why the
AI Customer ServiceWhy do electric motors draw current even when they are not moving? What I''m yet to fully understand is why exactly, from a physics point of view, does the current increase
AI Customer ServiceWhy do electric motors draw current even when they are not moving? What I''m yet to fully understand is why exactly, from a physics point of view, does the current increase
AI Customer ServiceStudy with Quizlet and memorise flashcards containing terms like Explain how lubricating the wheels on a skateboard could increase the speed of a girl., Explain why having a more
AI Customer ServiceThe first main difference between an electric motor and a generator is that a motor works by converting electrical energy into mechanical energy, while a generator does
AI Customer ServiceThe growing importance of energy storage. With sustainable, green energy sources such as wind, hydroelectric and solar power expanding in the energy mix, and a move
AI Customer ServiceWe need to install a capacitor in a single-phase motor due to the essential role of capacitors in 1-phase motors, as follows:. Starting Torque: One of the primary reasons a capacitor is required
AI Customer ServiceThe most common motor, then induction motor has a lot of its losses dependent on slip. Slip is the speed ratio of the motor''s rotor compared the the speed of its stator''s magnetic field. That means that the slower the rotor
AI Customer ServiceThe Sankey diagram above is for an electric lamp. As you can see, the total amount of energy given out by the lamp is 100 J. Of the total 100 J, 10 J is transferred as light energy (which is the transfer that is useful to us)
AI Customer ServiceEnergy close energyEnergy can be stored and transferred. Energy is a conserved quantity. can be described as being in different ''stores''. Energy cannot be created or destroyed. Energy can
AI Customer ServicePossible Solution: Motors should be checked regularly for vibration, using a motor analysing tool such as the relatively inexpensive SKF CMDT Plug & Play machine
AI Customer ServiceTo simplify: when a motor is not moving, electrically it looks like a short circuit. The only limit to the motor current is the resistance of the wires and motor brushes (if it has
AI Customer ServiceLearn about wasted energy for your GCSE physics exam. This revision note includes wasted energy examples, dissipation and reducing energy loss.
AI Customer ServiceSo plants can and do store energy as lipids. Perhaps the question is better rephrased as "Why isn''t the main store of energy in plants lipids like mammals." My guess is because plants do not move as actively as
AI Customer ServiceUnderstanding motor efficiency losses matters because less efficient units leads to higher operating costs over the life of the motor. So what happens to the energy that is not
AI Customer ServiceDissipated energy is often referred to as ''wasted'' energy, since it is not transferred to a useful output. . Dissipation is a term that is often used to describe ways in which energy is wasted.
AI Customer ServiceAs an electric motor spins, the energy from the electricity is ''conducted'' to the rotor by the magnetic fields. However, when the motor is stopped, the energy becomes heat and burns up
AI Customer ServiceThe first is ''why carbohydrates are used to store energy'' in general. The second being ''why glucose rather than other carbohydrates?'' in particular. Glucose metabolism (and glycogen
AI Customer Service$begingroup$ I read this question while I was writing mine on se (unfortunately I can''t find it at the moment) where someone was asking about infinite power in case a car is
AI Customer ServiceBut as we described the electrons going through the motor we mentioned that they gave a bit of energy to the motor, didn''t we? Where does all this energy come from? We know that the
AI Customer ServiceDissipation is a term that is often used to describe ways in which energy is wasted. Any energy that is not transferred to useful energy stores is said to be wasted because it is lost to...
AI Customer ServiceAs an electric motor spins, the energy from the electricity is 'conducted' to the rotor by the magnetic fields. However, when the motor is stopped, the energy becomes heat and burns up to motor. What causes this heat to be formed?
To simplify: when a motor is not moving, electrically it looks like a short circuit. The only limit to the motor current is the resistance of the wires and motor brushes (if it has brushes). This is the "stall current". Typically a stall current is very high and will quickly overheat and damage the motor.
Why does an electric motor burn up when you physically stop it? As an electric motor spins, the energy from the electricity is 'conducted' to the rotor by the magnetic fields. However, when the motor is stopped, the energy becomes heat and burns up to motor.
When the motor stands still, though, the generated voltage is zero and the windings will draw the max. current they can based on their DC resistance. In other words, the faster the motor runs, the higher a voltage it generates and the smaller the difference becomes.
IIRC the motor typically runs "phased" so that current is not at a continuous high level. But when it stalls, it gets "stuck" at the peak current draw point in its cycle. In addition, all the electrical power gets dumped as heat rather than as mechanical power into the system.
Motor efficiency is a ratio of how well the motor converts electrical energy into mechanical energy and is calculated by dividing the power into the motor by the power out of the motor. Understanding motor efficiency losses matters because less efficient units leads to higher operating costs over the life of the motor.
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