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An electron is accelerated from rest through a potential difference V . This electron experiences of force F in a uniform magnetic field. On increasing the potential difference to V ′ , the force experienced by the electron in the same magnetic field becomes 2 F . Then, the ratio V V ′ ​ is equal to A 1 4 ​ B 1 2 ​ C 2 1 ​ D 4 1 ​

An electron is accelerated from rest through a potential difference V. This electron experiences of force F in a uniform magnetic field. On increasing the potential difference to  V, the force experienced by the electron in the same magnetic field becomes 2F. Then, the ratio VV  is equal to

A

14

B

12

C

21

D

41

 
 

Grade:12th pass

1 Answers

Rituraj Tiwari
askIITians Faculty 1792 Points
8 months ago
657-395_Screenshot 2020-09-30 101956.png

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