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State the principle of production of e.m. waves. |
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Answer» _________________________________ at rest has no magnetic FIELD but only electric field around it. A moving charge with a CONSTANT velocity has both, the around it. But as the current is not changing with time, so magnetic field will also be constant .hence , If the is moving with some , both electric and magnetic field will be changed hence, . Thus, the accelerated charge PRODUCES both electric and magnetic fields which vary both in . These varying electric and magnetic fields give RISE to e.m.waves.is , |
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