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Ask QuestionPosted by Mahakaal Baba 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
In physics, electrostatics deals with the phenomena and properties of stationary or slow-moving electric charges. Electrostatic phenomena arise from the forces that electric charges exert on each other and are described by Coulomb’s law. Even though electrostatically induced forces seem to be rather weak.
Posted by Jyotish Kumar 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
- Alternating current is defined as the current that varies like a sine function with time.
- The value of current will oscillate between a maximum value and a minimum value.
- In case of AC the current is changing its magnitude at every instant of time.
- The direction of current will be clockwise and anticlockwise and it will keep on repeating.
- Frequency of the alternating current is defined as how fast the electrons are changing their directions. For example: If frequency is 20Hz this means electrons are moving back and forth 20 times in a second.
- DC voltage gives rise to DC current similarly AC voltage give rise to AC current.
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Yogita Ingle 5 years, 6 months ago
Magnetic field is an effect around a permanent magnet or a moving charge due to which ferromagnetic objects like some metals get attracted, and diamagnetic substances gets repelled, when placed in the magnetic field. The strength of magnetic field is called one tesla, if a charge of one coulomb, when moving with a velocity of 1 ms-1 along a direction perpendicular to the direction of the magnetic field experiences a force of one newton. CGS units of magnetic field are called gauss or oersted.
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Mayank Kumar 5 years, 9 months ago
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Kumar Yadav 5 years, 1 month ago
2Thank You