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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A simple pendulum has a bob of mass m which carries a charge q on it. Length of the pendulum is L. There is a uniform electric field E in the region. Calculate the time period of small oscillations for the pendulum about its equilibrium position in following cases: (i). E is vertically down having magnitude E=mgq (ii). E is vertically up having magnitude E=2mgq (iii). E is horizontal having magnitude E=mgq (iv). E has magnitude of E=q and is directed upward making an angle 45∘ with the horizontal

A simple pendulum has a bob of mass m which carries a charge q on it. Length of the pendulum is L. There is a uniform electric field E in the region. Calculate the time period of small oscillations for the pendulum about its equilibrium position in following cases: (i). E is vertically down having magnitude E=mgq (ii). E is vertically up having magnitude E=2mgq (iii). E is horizontal having magnitude E=mgq (iv). E has magnitude of E=q and is directed upward making an angle 45∘ with the horizontal

A charged cork ball of mass m is suspended on a light sting in the presence of a uniform electric field as shown in fig. When E=(Aiˆ+Bjˆ)NC−1 the ball is in equilibirum at θ. Find (a) the charge on the ball and (b) the tension in the string. Where A and B positive numbers