Physics · Electrostatics
A simple pendulum of mass 'm', length 'l', and charge '+q' is suspended between two conducting parallel plates that create a uniform horizontal electric field E. The value of the angular deflection θ of the pendulum from the vertical in its equilibrium position is given by:
- 1cos-1[ m gq E ]
- 2sin-1[ q Em g ]
- 3tan-1[ q Em g ]✓
- 4tan-1[ q Em ]
Correct answer
tan-1[ q Em g ]
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