The relation V=Ed is true only for a region of uniform electric field and does not apply here. Assume a test charge Q at the centre of the arrangement, find the potential energy of this test charge , a multiple of Q. Divide by Q to get the potential at the centre. Use
potential energy =
(Qq1...
Three springs of spring constant kare connected to a body of mass m and rigid supports, so that the angles are
A 90 degrees between two and 135 degrees between each of these two and the third.
B 120 degrees between any 2 adjacent ones.
Find time period of vibration.
I worked out a...