salient constructional features of squirrel cage and slip ring thre-phase induction motors principle of operation, slip and its significance and connection of submersible motors. locking of rotor and sttar fields. rotor resistance, inductance, emf and current. relationship between copper loss and the motor slip. power flow diagram of an induction motor. factors determining the torque. torque slip cuve, stable and unstable zones. effect of rotors resistance upon the torque slips relationship.

Three identical balls are placed on a frictionless horizontal surface touching each other. They stick to each other because of adhesive. Another ball of same radius and mass m is placed over the void created by the three balls. Find the forces applied by the balls kept on the floor to each other if the system remains in equilibrium.

A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.

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