Questions
An electron accelerated through a potential difference V passes through a uniform transverse magnetic field and experiences a force F. If the accelerating potential is increased to 2V, the electron in the same magnetic field will experience a force
detailed solution
Correct option is C
F = BqvBut 12mv2=eV or v=2eVm∴ F=Bq2eVm⇒ F∝V and F'∝2V F'F=2 or F'=2FTalk to our academic expert!
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