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Questions  >>  JEEMAIN and NEET  >>  NEET PAST PAPERS  >>  2010
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Q)

A beam of cathode rays is subjected to crossed. Electric (E) and Magnetic fields (B). The fields are adjusted such that the beam is not deflected. The specific charge of the cathode rays is given by – <br> (where V is the potential difference between cathode and anode)


( A ) $\frac{2VE^2}{B^2}$
( B ) $\frac{B^2}{2VE^2}$
( C ) $\frac{E^2}{2VB^2}$
( D ) $\frac{2VB^2}{E^2}$

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