Problem 4. Block Diagram Inversion Find the equation of motion and the initial conditions for the following system: 1/s² 10s + +4 50 E Q Search 1 s²+55+6 99+ X

A) Although the magnetic field for each phase of a 3-phase induction motor is merely switching back and forth between north and south poles, the resultant magnetic influence from all phases sets up a rotating magnetic field to cut the rotor conductors. a) true b) false B) In a two-pole stator winding of a 3-phase motor, how many revolutions does the rotating tr) magnetic field make in one cycle of the electrical current? a) one b) 60   c) 3600 d) none of the above

The voltage across a 10uF is shown in the figure below. Determine the current waveform. Showw all steps how you compute the current and draw the corresponding waveform. v(t) (V) 10 15. 10 15 (0 (ms) nere to search Ae

6-38 The switch in the circuit of Figure P6-38 is closed at t = 0, and the circuit is ini- tially relaxed. Determine the current i(t). FIGURE P6-38 100 cos 5000f 0.2 H 1.2 k ww 190² 0.2 μF

Question 24

k A capacitor circuit carrying 12 mA is placed across a 9 V sine wave ac source. A resistor carrying 20 mA is connected in parallel with the capacitor. The total circuit magnitude of current is esc 233 mA 32 mA O 12 MA ! 1 20 mA Q A e N 2 W S X #3 3 E D $ 4 C R F % 5 V T G ^ 6 MacBook Pro B Y H & 7 U N * 00 8 J I M ( 9 K ( O I ) -O L P : ; A + 11 { [ = 11 I delete return

Please answer the questions on the figure!

When the switch is in position 1, the circuit will charge the capacitor. Find the Thevenin Equivalent Circuit for the charge phase and determine the time constant (Rh*C) for the charge phase.

show the complete solution for this problem, thanks!

Q4. Determine the equivalent inductance and equivalent current of the inductive circuit in Figure Q4. If Ls is replaced with a capacitor of 0.55 mF, how would it affect the branch current? The alternating Voltage source has an amplitude of 25 Vm. Vm Sine 55 Hz L1 5 mH L2 5.3 mH rele cele Figure Q4 000 ele L3 6.6 mH L4 8.3 mH cele L5 7.7 mH