中国大学MOOC:"Power Conversion Efficiency=Optical output power / Electric input power";
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举一反三
- 电动机的额定功率是指（ ） A: 输出的机械功率 output mechanical power B: 输入的机械功率input mechanical power C: 输入的电功率input electric power D: 输出的电功率output electric power
- Electric power is an indispensable energy on board, so _____ plays a role in distribution, conversion and control of electric power on board. A: power supply unit B: distribution device C: power network D: load
- (10分)This heater consumes _______________ that one does. A: greater twice electric power B: electric power twice as great as C: twice as great electric power as D: twice greater electric power
- When using a connector for optical fiber connection, if the connector is not continuous, it will cause . A: Optical power cannot be transmitted B: Fresnel reflection of optical power C: Scattering loss of optical power D: Part of the scattering loss of optical power or return to the transmitting end in the form of reflection
- When measuring the optical power, we should first ensure that the input optical power difference of each channel of the OMU is within ( ). A: 1dB B: 2dB C: 3dB D: 5dB
内容
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The power input (electric power) of the motor is ( ) kW.[img=975x181]1803a2fca57c1f2.jpg[/img] A: 2.2 B: 3.58 C: 4.21 D: none of the above
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电力电子技术主要用于（ ）？ A: Information Processing B: Power Conversion C: Power Supply
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EPS(Electric Power Steering):____
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Please choose the main types of the power steering system used in cars today. A: Hydraulic Power Steering (HPS) B: Electric Power Steering (EPS) C: Electro-Hydraulic Power Steering (EHPS)
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This heater consumes _______________ that one does. A: electric power twice as great as B: greater twice electric powe C: twice as great electric power as D: twice greater electric powe