1. core loss
2. stator copper loss
3. stray load loss
4. friction and windage loss
friction and windage loss
1. reduce transmission line losses
2. increase mechanical strength of the line
3. reduce corona
4. reduce sag
reduce corona
1. 553×553
2. 540×540
3. 555×555
4. 554×554
540×540
1. P and Q
2. P and R
3. Q and S
4. S and T
P and R
1. 57.42o
2. 1o
3. 32.58o
4. 122.58o
32.58o
1. initiation of short circuit and the arc extinction on an opening operation
2. energizing of the trip circuit and the arc extinction on an opening operation
3. intiation of short circuit and the parting of primary arc contacts
4. energizing of the trip circuit and the parting of primary arc contacts
energizing of the trip circuit and the arc extinction on an opening operation
1. an n-channel depletion mode device
2. an n-channel enhancement mode device
3. a p-channel depletion mode device
4. a p- channel enhancement mode device
a p- channel enhancement mode device
1. [3.3/3.3]mA
2. [3.3/(3.3+3.3)]mA
3. [3.3.33]mA
4. [3.3/(33+3.3)]mA
[3.3/(3.3+3.3)]mA
1. 0o
2. -90o
3. +90o
4. ±180o
±180o
1. I0=I1=Cin;I2=I3=
2. I0=I1= ;I2=I3= Cin
3. I0=I3=Cin;I1=I2=
4. I0=I3= ;I1=I2= Cin
I0=I3=Cin;I1=I2=