A pendulum bob carries a positive charge 4μC and its time period 2 s. If a like charge of 6μC charge is held at the point of support, then the time period of the bob will become (length of pendulum is 0.5 m)
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remains the same
4μC 2 s.
6μC 0.5 m
●The force due to the charge kept at the suspension point always acts along the wire which is compensated by increase in tension of the string.
☆A charge is placed on a bob and a charge is placed at the suspension point of the pendulum
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●This force never accounts for change in time period since it has no component perpendicular to the wire.
☆The time period isn't subjected to change
so it reamains the same
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