交流电机的封装的元器件封装库是：( )。 A: (A)Inductor3 B: (B)Inductor Iron C: (C)Capacitors D: (D)Motor AC
交流电机的封装的元器件封装库是：( )。 A: (A)Inductor3 B: (B)Inductor Iron C: (C)Capacitors D: (D)Motor AC
An inductor stores energy in a magnetic field _________ an electric field.
An inductor stores energy in a magnetic field _________ an electric field.
The circuit containing inductor may have high voltage at the moment of switching.
The circuit containing inductor may have high voltage at the moment of switching.
Which component is an active device? A: resistor B: capacitor C: transistor D: inductor
Which component is an active device? A: resistor B: capacitor C: transistor D: inductor
Voltage across the inductor is initially the same as the supply voltage but drops off to zero when the magnetic field is established.
Voltage across the inductor is initially the same as the supply voltage but drops off to zero when the magnetic field is established.
If the current in an inductor is doubled, by what factor is the stored energy multiplied? A: 4 B: 2 C: 1 D: 1/2 E: 1/4
If the current in an inductor is doubled, by what factor is the stored energy multiplied? A: 4 B: 2 C: 1 D: 1/2 E: 1/4
If<br/>the current in an inductor is doubled, by what factor is the stored<br/>energy multiplied? A: 4 B: 2 C: 1 D: 1/2 E: 1/4
If<br/>the current in an inductor is doubled, by what factor is the stored<br/>energy multiplied? A: 4 B: 2 C: 1 D: 1/2 E: 1/4
常用的理想电路元件中，储存电场能的元件是（ ）Among the common ideal components, ( )stores lectric-field energy is () A: 开关switch B: 电阻resistor C: 电容capacitor D: 电感inductor
常用的理想电路元件中，储存电场能的元件是（ ）Among the common ideal components, ( )stores lectric-field energy is () A: 开关switch B: 电阻resistor C: 电容capacitor D: 电感inductor
常用的理想电路元件中，储存磁场能的元件是（ ）Among the common ideal components, the one storing magnetic field energy is () A: 开关switch B: 电阻resistor C: 电容capacitor D: 电感inductor
常用的理想电路元件中，储存磁场能的元件是（ ）Among the common ideal components, the one storing magnetic field energy is () A: 开关switch B: 电阻resistor C: 电容capacitor D: 电感inductor
The inductor voltage phase lags its current by 90 o, and the capacitor current lags its voltage by 90 o, is this conclusion true? [ ]. A: It's impossible. B: When the capacitance and inductance are nonlinear components. C: When inductance current and voltage, capacitance current and voltage are not related direction. D: Whenever.
The inductor voltage phase lags its current by 90 o, and the capacitor current lags its voltage by 90 o, is this conclusion true? [ ]. A: It's impossible. B: When the capacitance and inductance are nonlinear components. C: When inductance current and voltage, capacitance current and voltage are not related direction. D: Whenever.