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Class 12 · Physics
→In a region, the magnitude of electric field is the same at equally spaced points but its direction changes. Is the field uniform?
Class 12 · Physics
→A positive test charge at a point experiences zero force. Is it correct to say that there is no charge nearby?
Class 12 · Physics
→A positive test charge is kept small to find electric field. If it is large and shifts the source charges, what is the main error in the obtained field?
Class 12 · Physics
→If field lines are directed inward near one charge and outward near another, what conclusion follows about the signs of the two charges?
Class 12 · Physics
→What care is correct while relating the number of electric field lines to the magnitude of charge?
Class 12 · Physics
→In a diagram, field lines are straight between parallel plates but bend outward near the edges. Why is the edge field not called uniform?
Class 12 · Physics
→In a region, field lines point left and become more sparse toward the left. Which statement about force on a negative charge is correct?
Class 12 · Physics
→In a non-uniform electric field, field lines point right and become denser toward the right. Which statement about force on a positive charge is correct?
Class 12 · Physics
→At a point, electric field direction is northeast. What does this mean for force on a positive test charge?
Class 12 · Physics
→At a place, field lines are downward and a negative charge is observed accelerating upward. Which conclusion is correct?
Class 12 · Physics
→If electric field at a point becomes double and the test charge becomes half, how will the force compare with the initial force?
Class 12 · Physics
→Field line density is high in a region, but a very small test charge is placed there. If the test charge is doubled, how should the source field-line diagram change?
Class 12 · Physics
→A positive charge is to be kept at rest in an eastward electric field. In which direction should the external force act?
Class 12 · Physics
→At a point, the electric field is eastward. To keep a negative charge at rest there, in which direction must an external force be applied?
Class 12 · Physics
→If the distance from a point charge is halved and the source charge is tripled, how many times will the electric field become?
Class 12 · Physics
→Due to a positive charge, the field at point A is four times the field at point B. If both points lie on the same line, what can be said about their distances?
Class 12 · Physics
→Two field lines are nearly parallel in a small region but spread apart later. What conclusion follows?
Class 12 · Physics
→If three electric fields at a point are two east, two west and five north, what is the direction of the net field?
Class 12 · Physics
→At a point, two fields have magnitudes ten and six newtons per coulomb in opposite directions. If the larger field is eastward, what is the net field?
Class 12 · Physics
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