
Grade 12Electrostatics
A charged bead of 4 micro columb is threaded on a fixed smooth circular ring of radius 2m in gravity free space . Another same charge is fixed at 1m from center . the bead is projected with such sufficient velocity to complete the circular path . If the mass of bead is 100gm . what is initial speed v? - 80 root 3 cm/sec
- 40 root2 cm/sec
- 10 m/s
- 4 root 5 m/sec
A charged bead of 4 micro columb is threaded on a fixed smooth circular ring of radius 2m in gravity free space . Another same charge is fixed at 1m from center . the bead is projected with such sufficient velocity to complete the circular path . If the mass of bead is 100gm . what is initial speed v?
- 80 root 3 cm/sec
- 40 root2 cm/sec
- 10 m/s
- 4 root 5 m/sec




