magnetic mind power

Hydroelectric Power Plants - The electricity produced from flowing water is called Hydroelectric power. The world's first hydroelectric power plant was set up in 1882 in Wisconsin USA. It had a very small output, supplying power only for about 250 light bulbs..

Voltage or current in simple direct current electric circuits Problems involving Ohm's law Formula for power (rate of energy dissipation) in any resistive circuit element Properties of transistors and their role in electric circuits Electric fields Magnetic fields Di..

Voltage or current in simple direct current electric circuits Problems involving Ohm's law Formula for power (rate of energy dissipation) in any resistive circuit element Properties of transistors and their role in electric circuits Electric fields Magnetic fields Di..

Summary - An electric current produces a magnetic field A magnetic field exists in the region surrounding a magnet, in which the force of the magnet can be detected Field lines are used to represent a magnetic field The magnetic field line..

A circular coil of radius 8.0 cm and 20 turns rotates about its vertical diameter with an angular speed of 50ms - 1 in a uniform horizontal magnetic field of magnitude 3.0 x 10 - 2 T. Obtain the maximum and the average EMF induced in the coil. If the coil forms a closed loop of resis..

The best method of making a powerful magnet is by passing electric current. Wind a length of an insulated copper wire around a steel rod DY and connect it to a battery and a switch. After the current has passed through the coil for some time you will notice that the steel r..

Argon is used mainly to provide an inert atmosphere in high temperature metallurgical processes (arc welding of metals or alloys) and for filling electric bulbs. It is also used in the laboratory for handling substances that are air-sensitive. Helium is a non-flammable and light gas. Hence, it is u..

Uses of Noble Gases - Argon is used mainly to provide an inert atmosphere in high temperature metallurgical processes (arc welding of metals or alloys) and for filling electric bulbs. It is also used in the laboratory for handling substances that are air-sensitive. Helium is a non-flammable and lig..

The principle of quantisation of electric charge states that "in nature there is a smallest amount of charge and all other charges are integral multiples of this smallest unit ". That is, if e is the minimum charge then the total charge on the body is equal to ne where n is an integer. This fact t..

>The amount of heat generated in a conductor of resistance 'R', when current 'I' flows through it in a given time 't', is given by I 2 Rt. Electric power is said to be one watt if a potential difference of one volt causes a current of one ampere to flow through a conductor. The magne..