240 V series motor runs at 800 RPM to give a total torque of 110 Nm. The current taken by the motor at this torque is 90 A. If the total resistance of the motor is 0.6 ohm, find the torque developed when the motor runs at 1,200 RPM.

A wind turbine gives maximum output power of 1MW at a wind speed of 15m/s.  Choose the correct statement for this wind turbine.   a. The input wind power is 2.5MW b. The input wind power is 1.69MW c. The input wind power is 1.25MW d. The input wind power is 2.1MW

the field windings of a series motor has a resistance of 120 ohms at 15° c. after running for 2 hours, the resistance has increases to 140 ohms. if the temperature coefficient of the windings at 0°C is 0.004, find the new temperature of the windings

Look carefully at the figure and answer the following questions. For your answers choose between on the right, on the left and it is zero; there are no more options. (a) When the switch is “open” i. Where does the current flow in the battery? ii. Where is the magnetic flux going in the bar on the left? iii. Where does the magnetic flux go in the bar on the right? iv. Where does the current flow in the resistor?

An electron synchrotron of 6 x 109eV, electrons march through the machine in a roughly circular path 240 meters long. It is normal to have around 1011 electrons circulating in this path during an acceleration cycle. The speed of electrons is practically that of light. What is the current?

50HP 380/220 50Hz 6 pole induction machine has nominal speed of 900 rpm. When the torque is increased as additional %25 of the nominal value, what will be the new speed? The speed at smax is 800 rpm

250 v ,4pole wavw wound DC series motor has 782 conductors on its armature and series field resistant of 0.75 ohm the motor takes a current of 40amp esstimate its speed and its torque developed if it has a flux per pole of 2mWb

The maximum amount of voltage is induced time(s) in 3600 of mechanical rotation for a single loop coil rotating between a north and south magnetic poles of a DC generator. a) one b) two c) four d) none of the above

divided by rpm. Torque equals horsepower 5252 a. b. horsepower x 5252 voltage x horsepower C. d.

A compound motor short draw a current of 50 A at a voltage of 220 V it rotates at a speed of 1200 rpm Calculate the reverse electromotive force if the resistance of the product is 0.04 ohm the resistance of the series windings is 0.01 ohm and the resistance of the parallel windings is 125 ohm then Calculate the torque generated