physics definition work

When a current is passed through the coil in the direction PQRS, then the coil experiences a torque t = NIBA sin a Since the magnified field is radial the plane of the coil is parallel to the magnetic field such that a = 90 o and hence t = NIBA. The coil rotates and the phosphor bronz..

Ammonium chloride, splits into ammonium and chloride ions. The chloride ions (Cl - ) migrate to the zinc rod and deposit their negative charge at the zinc rod. Hence zinc becomes negatively charged and the reactions takes place in which zinc is converted to zinc chloride. The ammonium ions migrate..

The various forms of biomass are mixed with an equal quantity of water in the mixing tank. This forms the slurry. The slurry is fed into the digester through the inlet chamber. When the digester is partially filled with the slurry, the introduction of slurry is stopped and the plant is left..

The plane of the coil is horizontal and the split ring S 1 touches the brush B 1 while the split ring S 2 touches the brush B 2 . The brush B 1 is connected to the anode of the d.c. battery while the brush B 2 is connected to the cathode. The current flows in the coil in the direction ABCD. The arm..

To start with, suppose the plane of the coil is perpendicular to the plane of the paper in which the magnetic field is applied, with AB at the front and CD at the back, the flux linked with the coil is maximum in this position. As the coil rotates clockwise, AB moves inwards and CD moves outwards...

Let us now discuss the conditions to be satisfied for work to be done. From the above examples, it is clear that work is said to be done when a force acts on an object and the point of application of the force moves in the direction of force. Hence, the essential condition that ..

Work and Measurement of Work - Let us now discuss the conditions to be satisfied for work to be done. From the above examples, it is clear that work is said to be done when a force acts on an object and the point of application of the force moves in the direc..

In 1798, Count Rumford observed that the amount of heat produced is proportional to the amount of mechanical work done. Later, Dr. James Prescott Joule of Manchester, established a definite relation between the work done and the heat produced. It was shown that when a ..

Unit work is the amount of work done when a unit force displaces a body through unit distance in the direction of the force. In International System of units, the absolute unit of work is 'joule'. 1 joule = 1 newton x 1 met..