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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2005

  • question_answer
    An electric field of 1500 V/m and a magnetic field of 0.40 weber/metre act on a moving electron. The minimum uniform speed along a straight line die electron could have is:

    A)  \[1.6\times {{10}^{15}}m/s\]

    B)  \[6\times {{10}^{-16}}m/s\]

    C)  \[3.75\times {{10}^{3}}m/s\]

    D)  \[3.75\times {{10}^{2}}m/s\]

    Correct Answer: C

    Solution :

    Here, \[E=1500\text{ }V/m,B=0.4\text{ }Wb/{{m}^{2}}\] Minimum speed of electron along the straight line \[\upsilon =\frac{E}{B}\] \[=\frac{1500}{0.4}\] \[=3750\] \[=3.75\times {{10}^{3}}m/s\]


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