An electric motor turns ___ (electric) energy into mechanical energy. 相关知识点: 试题来源: 解析 electrical 答案:electrical,修饰名词,用形容词electrical"关于电的,与电有关的",如 electrical engineering 电工学; electrical energy电能.注意:electric也是形容词,意思是带电的,发电的,电动的,也是形容词....
What is the power output of an engine the does 60,000 J of work in 10 s? Explain how the phenomenon known as electromagnetism relates to an electric motor. An electric motor with a 4.5 output drives a machine with an efficiency of 45. What is the energy output of the ...
793,810. Electric motor driving arrangements; magnetic dust. ELEKTRO-MECHANIK-GES. Aug. 2, 1955 [Aug. 2, 1954], No. 22152/55. Classes 35 and 38 (2). A squirrel-cage motor drives through a magnetic powder clutch situated within the rotor 5. The inner member of the clutch consists of...
In an electric motor, the force that makes the rotor turn is produced by _. A. the magnetic field B. the electric current only C. the mechanical force D. the heat 相关知识点: 试题来源: 解析 A。解析:在电动机中,使转子转动的力是由磁场产生的。B选项仅电流不能使转子转动;C选项机械力不...
A method for mounting and positioning an electric motor (1) in a motor seat (5). The motor (1) comprises a capacitor (4) projecting from the motor (1) and positioning means (11a, 12a) which couple with corresponding matching positioning means (9a, 10a) of the seat (5). The positioni...
Electric motor output power As described above, electrical motors transform electrical energy into mechanical work. Two important variables determine the mechanical capabilities of a motor: angular speed and torque. Mechanical power output of the motor could be calculated by using the following formula:...
A drive with an electric motor, a housing and a direction-dependent brake, which includes a driver splined to a motor shaft, a drive output coupled freely pivotable around a small angle and shape-mated with the driver, several clamping devices and a clamping ring, in which the clamping ...
A. Gas B. Electricity from the batteries C. Solar energy D. Wind power 相关知识点: 试题来源: 解析 B。解析:文章中说 When you drive an electric car, the electricity from the batteries powers the motor. 所以当驾驶电动汽车时,是电池中的电为电机提供动力。反馈...
In a method for starting an electric motor, which is operated by alternating current and which has a stator (1) with a main winding (H) and a first auxiliary winding (AUX1) and a rotor with permanent magnets and at least one short-circuit winding, it is ensured that, in order to avo...
44 An electric motor has a rating of 4.0 × 102 watts.How much time will it take for this motor to lift a50.-kilogram mass a vertical distance of 8.0 meters?[Assume 100% efficiency. ] (2)(1)0.98 s(3) 98 s(2) 9.8 s(4) 980 s 相关知识点: 试题来源: 解析 (2) 反馈 收藏...