A horizontal bar fixed rigidly at one end is called a cantilever. When a load is hung at its free end the cantilever (i) bends (ii) inclines at an angle with the horizontal without bending .What will be the nature of strain in each case?

A weightless wire has its ends rigidly fixed. From the mid-point of the wire on object of mass 500 g is hung so that each part of the wire subtends an angle of 30^(@) with the horizontal. Find the tension in each part of the rope.

One end of a 600 cm long steel bar is fixed rigidly and the other end rests on a lever, 10 cm away from its fulcrum. The lever turns through 2^(@) when the bar is heated up to 50^(@)C. Find the increase in length of the bar and its coefficient of linear expansion.

A wire 30 m long and 2 m m^(2) cross-section is stretched by 0.49 cm when a load of 5 kg is hung from its free end. Find (i) longitudinal stress, (ii) Longitudinal strain.

A straight conductor of length 10 cm is rotating in a vertical plane with one of its ends fixed. The angular velocity is 10 rad . s^(-1) . What is the value of emf (in muV ) induced between the two ends of the conductor if the horizontal component of earth's magnetic field at the place is 10^(-4)T ?