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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Two point electric charges of unknown magnitudes and signs are placed a certain distance apart. THe electric field intensity is zero at a point not between the charges but on the line joining them. write two essential conditions for this to happen.

Two point electric charges of unknown magnitudes and signs are placed a certain distance apart. THe electric field intensity is zero at a point not between the charges but on the line joining them. write two essential conditions for this to happen.

A particle of mass m carrying a charge -q1 starts moving around a fixed charge q2 along a circular path of radius r . Find the time period of revolution T of charge -q1.