Search questions
Use text search or combine filters to find exactly the questions you need.
Class 12 · Physics
→In a non-uniform electric field, field lines become closer in one direction. Moving in that direction, how does the field magnitude change?
Class 12 · Physics
→On the equatorial line of a dipole, which components of the fields due to the two charges cancel?
Class 12 · Physics
→For an electric dipole, a far axial point and a far equatorial point are at the same distance. What is the ratio of their field magnitudes?
Class 12 · Physics
→At a far axial point of an electric dipole, what happens to the field magnitude if distance is made three times?
Class 12 · Physics
→If the distance from a point charge is halved and the charge magnitude is also halved, how will the electric field change?
Class 12 · Physics
→What is the most mature use of electric field lines?
Class 12 · Physics
→At a place field lines point right but a particle is moving left. What conclusion cannot be made with certainty?
Class 12 · Physics
→If field lines are shown emerging outward from a negative charge, which rule is violated?
Class 12 · Physics
→If a diagram shows field lines starting from one positive charge and ending on another positive charge, what is the main error?
Class 12 · Physics
→If field lines in a region are directed from bottom to top and become closer upward, what happens to the force on a positive charge?
Class 12 · Physics
→If the distance from a point charge is doubled and the charge is made four times as large, how will the new electric field compare with the old one?
Class 12 · Physics
→The electric field due to a point charge at point A is nine times that at point B. If both points lie in the same direction from the charge, what is the ratio of their distances?
Class 12 · Physics
→At a point on the perpendicular bisector of two equal negative charges, what is the direction of the net electric field?
Class 12 · Physics
→At a point on the perpendicular bisector of two equal positive charges, what is the direction of the net electric field?
Class 12 · Physics
→In an upward electric field, in which direction must an external force be applied to keep a positive charge at rest?
Class 12 · Physics
→At a point, field lines are directed south. In which direction should an external force be applied to keep a negative charge at rest?
Class 12 · Physics
→If field lines are dense in a region but the force on a charge is small, what is the most likely reason?
Class 12 · Physics
→If the test charge is too large, what problem can arise in the definition of electric field?
Class 12 · Physics
→When the positive test charge at a point is doubled, the measured force doubles. What conclusion follows about the electric field?
Class 12 · Physics
→