Fig. shows a ball having a charge q fixed at a point A. Two identical balls of mass m having charge +q and -q are attaached to the end of a light rod of length 2a. The system is released from the situation shown in fig. Find the angular velocity of the rod when the rod turns through 90^(@)

Fig. shows a ball having a charge q fixed at a point A. Two identical

1.	Fig. shows a ball having a charge q fixed at a point A. Two identical balls of mass m having charge +q and -q are attaached to the end of a light rod of length 2a. The system is released from the situation shown in fig. Find the angular velocity of the rod when the rod turns through 90^(@)
Answer» `(SQRT(2)q)/(3piepsilon_(0)ma^(3))` `(q)/(sqrt(3piepsilon_(0)ma^(3)))` `(q)/(sqrt(6piepsilon_(0)ma^(3)))` `(sqrt(2)q)/(sqrt(4piepsilon_(0)ma^(3)))` Answer :C

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Fig. shows a ball having a charge q fixed at a point A. Two identical balls of mass m having charge +q and -q are attaached to the end of a light rod of length 2a. The system is released from the situation shown in fig. Find the angular velocity of the rod when the rod turns through 90^(@)

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