by abhishek | Aug 27, 2020 | Magnetic Effects of Current
The phenomenon of electromagnetic induction was discovered by Michael Faraday in 1831. He discovered that moving a wire in a magnetic field generates an electric current in the wire. This phenomenon is known as electromagnetic induction and the current so produced is...
by abhishek | Aug 27, 2020 | Magnetic Effects of Current
When electric current is passed through a conductor placed in a magnetic field, it experiences a mechanical force. The force due to magnetic field acting on a conductor can be demonstrated by Kicking Wire Experiment. Kicking Wire Experiment Take a flexible copper wire...
by abhishek | Aug 27, 2020 | Magnetic Effects of Current
An electromagnet is a temporary magnet in which a long insulated copper wire is wrapped on a soft iron core in the form of a helix. Thus, an electromagnet is a solenoid having a core of soft iron core at its centre. When electric current in passed through it, it...
by Rajan Gupta | Aug 27, 2020 | Universe
In India, space exploration started in 1967 when India launched its first toy rocket RH-75. After it India launched its first artificial satellite namely Arya Bhatta on March 19, 1975. The first Indian who went into the space is Rakesh Sharma. Then, India launched its...
by Rajan Gupta | Aug 27, 2020 | Universe
Following are the important applications of artificial satellites. 1. Communication The geostationary satellites are used for communication purpose like long distance telephone calls, telex, radio and T.V broadcasts etc. The satellites used for communication purpose...
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