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[" iii) A uniform magnetic field is appl...

[" iii) A uniform magnetic field is applied perpendicular to the "],[" motion of electrons.As a result of it electrons move the "],[" circular path of radius "2cm" .If the magnetic field is "],[" doubled,then the radius of circular path will be "],[[" (a) "0.5cm," (b) "1cm," (b) "1cm]]

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