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A thin insulating uniformly charged (lin...

A thin insulating uniformly charged (linearly charged density `lambda` ) rod is hinged about one of its ends. It can rotate in vertical plane. If the rod is in equilibrium by applying vertical electric field `E` as shown in figure, then find the value of `E( in `(N/C)` ). (Given: Mass of rod = 2kg, `lambda=10 C / m, l=1 m g= `10 m / s^(2)` )
'(##CEN_KSR_PHY_JEE_C18_E01_019_Q07##)'

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