In what phase Microtubules push poles apart to elongate the cell?

In what phase Microtubules push poles apart to elongate the cell?
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Description : A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20  meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span  (A) 2.5 cm  (B) 3.0 cm  (C) 4.0 cm  (D) 5.0 cm 

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A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart...

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Last Answer : A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span 4.0 cm.

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If a three-phase induction motor is operated under a light load and it develops an open in one of its supply lines, the motor will _____________. A. continue to run, but will vibrate and have reduced torque B. speed up due to the reduced number of poles C. run cooler due to reduced current flow D. stop

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Last Answer : Answer: A

A three-phase, squirrel cage, induction motor will run hot due to _____________. A. open stator coils B. high power factor C. dirty or corroded slip rings D. reversed commutating poles

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The speed of a multi-speed, squirrel-cage, induction motor operating in a fixed frequency system can be changed by _____________. A. reconnecting stator windings for different numbers of poles B. changing the RPM of the rotor flux C. changing the phase sequence of the applied voltage D. reconnecting the stator so that no poles have the same polarity

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The speed of a three-phase squirrel-cage induction-type motor operating in a fixed frequency system is varied by changing the _____________. A. number of phases to the motor B. number of stator poles C. locked rotor current D. resistance of the rotor winding

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A 400kW, 3-phase, 440V, 50Hz induction motor has a speed of 950 r.p.m. on fullload. The machine has 6 poles. The slip of the machine will be _______________. (A) 0.06 (B) 0.10 (C) 0.04 (D) 0.05

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Last Answer : Ans: D N = Ns (1-S) 950 = 120 x 50 (1-S)/6 S = 0.05

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