Single Choice

A particle of mass $$m$$ and charge $$q$$ is released from rest at the origin as shown in the figure. The speed of the particle when it has travelled a distance $$d$$ along the z-axis is given by:-

A$$\sqrt {\left (\dfrac {2qE_0 d}{m}\right)}$$
B$$q\sqrt{\left (\dfrac{E_0d}{B_0}\right)}$$
C$$\sqrt{\left(\dfrac{m}{qE_0d}\right)}$$
Correct Answer
D$$\sqrt{\left (\dfrac{2m}{qE_0d}\right)}$$

Solution

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