In the diagram shown, If the south-poles of two magnets stroke a steel bar, the polarities at T and V will respectively be

In homes, electrical appliances and lamps are connected in parallel because

An object moves in a circular path of radius 0.5m with a speed of 1ms\(^{-1}\). What is its angular velocity?

What effort will a machine of efficiency 90% apply to a load of 180N if its efforts arm is twice as long as its load arm?

Calculate the effective capacitance of the circuit in the diagram given