• The four cells 1.5 V each and 8Ah rating are connected in parallel in a battery. What is the voltage rating of the battery ?

• A 6 pole, 3-phase induction motor taking 25 kW from a 50 Hz supply is cumulatively cascaded to a 4-pole motor. Neglecting all losses, speed of the 4-pole motor would be ……. R.P.M