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A horizontal electric field (E = (mg /q)...

A horizontal electric field (E = (mg /q) exist in space, as shown in (Fig. 3.24.) A particle of mass m, having charge q, is attached at the end of a light insulated rod. If the particle is released from the position shown in the figure. Find the angular velocity of the rod when it passes through the bottom most position.
.

A

`sqrt((g)/(l))`

B

`sqrt((2g)/(l))`

C

`sqrt((3g)/(l))`

D

`sqrt((5g)/(l))`

Text Solution

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The correct Answer is:
B
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