An infinite number of charges each equal to ′q′ are placed along the X-axis at x=1, x=2, x=4, x=8 The potential at the point x=0 due to this set of charges is :
The angular momentum of a particle performing uniform circular motion is L. If the kinetic energy of the particle is doubled and frequency is halved, then angular momentum becomes
A.L2
B.2L
C.L4
D.4L

Q&A Education