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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A particle having charge that of an electron and mass 1.6×10−30 kg is projected with an initial speed u at the angle 45∘ to the horizontal from the lower plate of a parallel-plate capacitor as shown in fig. The plates are sufficiently long and have a separation of 2 cm, find the maximum value of the velocity of he particle so that it does not hit the upper plate. Take the electric field between the plates as 103Vm−1 directed upward.

A particle having charge that of an electron and mass 1.6×10−30 kg is projected with an initial speed u at the angle 45∘ to the horizontal from the lower plate of a parallel-plate capacitor as shown in fig. The plates are sufficiently long and have a separation of 2 cm, find the maximum value of the velocity of he particle so that it does not hit the upper plate. Take the electric field between the plates as 103Vm−1 directed upward.

A particle of mass ma and charge q is released from rest in a uniform filed of magnitude E. the uniform field is created between two parallel plates of charge densities +σ and −σ respectively. The particle accelerates toward the other plate a distance d apart. Determine the speed at which it stirkes the opposite plate.