Coulomb's Law

JEE Main Physics · Electrostatics · 12 questions, latest first

• Two point charges q_1=3 μ C and q_2=-4 μ C are placed at points (2 i+3 j+3 k) and ( i+ j+ k) respectively. Force on charge q_2 is…20268 April, Shift 2 · Q41
• A small uncharged conducting sphere is placed in contact with an identical sphere but having 4 × 10^-8 C charge and then removed…202524 January, Shift 2 · Q37
• A positive ion A and a negative ion B has charges 6.67 × 10^-19 C and 9.6 × 10^-10 C, and masses 19.2 × 10^-27 kg and 9 × 10^-27…202523 January, Shift 1 · Q50
• Two identical conducting spheres P and S with charge Q on each, repel each other with a force 16 N. A third identical uncharged…20246 April, Shift 2 · Q42
• In hydrogen like system the ratio of coulombian force and gravitational force between an electron and a proton is in the order of:20245 April, Shift 1 · Q41
• Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle θ with each other. When…20241 February, Shift 1 · Q55
• Force between two point charges q_1 and q_2 placed in vacuum at ' r ' cm apart is F. Force between them when placed in a medium…202431 January, Shift 2 · Q40
• Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of 37° with each other. When…202430 January, Shift 2 · Q55
• A thin metallic wire having cross sectional area of 10^-4 m^2 is used to make a ring of radius 30 cm. A positive charge of 2 π C…202427 January, Shift 1 · Q55
• A 10 μ C charge is divided into two parts and placed at 1 cm distance so that the repulsive force between them is maximum. The…202313 April, Shift 2 · Q41
• As shown in the figure, a configuration of two equal point charges (q_0=+2 μ C) is placed on an inclined plane. Mass of each…202311 April, Shift 1 · Q55
• If two charges q_1 and q_2 are separated with distance 'd' and placed in a medium of dielectric constant K. What will be the…202324 January, Shift 1 · Q20