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Chapter1 Electric Charges And Fields

Class 12 Physics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

PhysicsWhen the positive test charge at a point is doubled, the measured force doubles. What conclusion follows about the electric field?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Easy PhysicsAt the midpoint of two equal opposite charges the electric potential can be zero, but why is electric field not zero?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Hard PhysicsAt a point the electric field is zero but electric potential is positive. In which arrangement can this happen?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Hard PhysicsIn the same electric field the force magnitudes on a proton and an electron are equal. Why are their accelerations not equal?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Hard PhysicsA proton and an electron are placed in the same uniform electric field. Which statement about the magnitudes of the forces is correct?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsAn electron is released in a uniform westward electric field. In which direction will it accelerate?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsA positive charge is held at rest in a uniform eastward electric field. What happens just after the external force is removed?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsElectrostatic field lines do not form closed loops. What deeper idea is this related to?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Hard PhysicsIf two field lines are assumed to intersect, what contradiction arises about force on a positive test charge at that point?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsOn a curved field line the tangent directions at two nearby points are different. What conclusion follows?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsPoints A and B lie on field lines. Lines are closer near A and farther near B. Where will the force on the same positive charge be greater?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsIf field lines in a small region are nearly parallel but not equally spaced, is the electric field uniform?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsIn a non-uniform field, the lines point upward and become sparser upward. What happens to the force on an electron and to its magnitude?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsA positive test charge is placed in a non-uniform field where field lines become denser toward the right. Which statement about the force is correct?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsIf the electric field is zero at one point but nonzero at nearby points, how should that zero-field point be understood?Class 12Electric Charges and FieldsElectric Field and Electric Field LinesLevel 17Medium PhysicsA field line is shown oblique to a conductor surface. What is the main defect in the diagram?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 17Medium PhysicsWhy are electric field lines drawn more densely near the pointed part of a charged conductor?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 17Hard PhysicsIf a positive charge is placed inside the cavity of a conductor, which statement about electric field lines in the cavity is correct?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 17Hard PhysicsA closed conductor has an empty cavity. If a very strong external electric field is applied, what will the electric field inside the cavity be?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 17Medium PhysicsWhy must the tangential component of the electric field at the surface of a conductor in electrostatic equilibrium be zero?Class 12Electric Charges and FieldsConductors and InsulatorsLevel 17Medium