Two pitch balls each of mass 1g and carrying a charge of 1 mC are attached to the ends of silk threads 1 m
long, the other ends of which are attached to some fixed point, in a gravity free space. The force between
them is
(a) 9.8´ 10-6 N (b) 9.8 ´ 10-12 N (c) 2.25 ´ 10-3 N (d) 4.5 ´ 10-6 N
Two pitch balls each of mass 1g and carrying a charge of 1 mC are attached to the ends of silk threads 1 m
long, the other ends of which are attached to some fixed point, in a gravity free space. The force between
them is
(a) 9.8´ 10-6 N (b) 9.8 ´ 10-12 N (c) 2.25 ´ 10-3 N (d) 4.5 ´ 10-6 N
jeet jeetu , 12 Years ago
Grade 11
