PhysicsHardHigh School (11–12)Electricity & Magnetism › ElectrostaticsJEE MainNEETAEEE (Amrita)AMUEEEAP EAPCETBCECE
Created by StemPy LabThree identical small metal spheres A, B and C stand on insulating stands. A carries , B carries and C is neutral. A and B are fixed apart. C is first touched to A, then touched to B, and then taken far away. Take and treat the spheres as point charges. What is the force between A and B now?
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← The figure shows a closed cylinder of length 0.50 m and radius 0.10 m, with its axis along the x-axis and its left face at x = 0. In this region the electric field points along +x, and its magnitude is E = E₀ + bx, where E₀ = 600 N C⁻¹ and b = 400 N C⁻¹m⁻¹. Take ε₀ = 8.85 × 10⁻¹² C²N⁻¹m⁻². What is the net charge inside the cylinder?Two statements about electric field lines are given below.
Statement I: In electrostatics, field lines start on positive charges and end on negative charges, and no field line can form a closed loop.
Statement II: A positive point charge released from rest where the field lines are curved moves along the field line through its starting point. →
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