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Class 12 · Physics
→Around a positive point charge, how do field lines meet a spherical surface centered on the charge?
Class 12 · Physics
→Due to two point charges, the fields at a point are four newtons per coulomb north and three newtons per coulomb east. Which statement about resultant direction is correct?
Class 12 · Physics
→A positive charge experiences force toward the right at a point. What will be the force on an equal magnitude negative charge at the same point?
Class 12 · Physics
→A diagram shows parallel field lines whose spacing keeps decreasing. What kind of field does it indicate?
Class 12 · Physics
→If electric field lines are very close in a region but arrow directions change rapidly, which statement best describes the field?
Class 12 · Physics
→At the centre of an electric dipole, in which direction are the field lines directed?
Class 12 · Physics
→What is the direction of net electric field on the equatorial line of an electric dipole?
Class 12 · Physics
→At a point on the axial line of an electric dipole outside the positive charge, what is the direction of net electric field?
Class 12 · Physics
→Electric field lines are normal to a conductor surface. If they made an oblique angle with the surface, what physical problem would arise?
Class 12 · Physics
→Why is the zero-field point for unequal opposite charges generally not found between the two charges on their joining line?
Class 12 · Physics
→Why is the zero-field point between two unequal positive charges closer to the smaller charge?
Class 12 · Physics
→Why is the electric field at the exact midpoint between two equal and opposite charges not zero?
Class 12 · Physics
→At a point, the net electric field is zero. If a negative test charge is placed there instead of a positive test charge, which statement about force is correct?
Class 12 · Physics
→At a point, two electric fields of six newtons per coulomb and eight newtons per coulomb are mutually perpendicular. What is the magnitude of the resultant field?
Class 12 · Physics
→The net electric field at the midpoint of two equal positive charges is zero, but why does it not remain zero when the point is slightly shifted upward?
Class 12 · Physics
→In a diagram electric field lines suddenly end near a point, but no negative charge is shown there. What is the most appropriate comment?
Class 12 · Physics
→For a closed surface around a negative charge, field lines enter from outside. What is the correct meaning?
Class 12 · Physics
→A small closed surface is drawn around a positive point charge. What does field lines leaving the surface indicate?
Class 12 · Physics
→If in a small region field lines are almost parallel but arrows are shown in opposite directions on nearby lines, what is the main error in the diagram?
Class 12 · Physics
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