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JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES
1
Medium
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Understanding
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A positively charged insulator is brought near (but does not touch) two metallic sphere that are in contact. The metallic spheres are then separated. The sphere which was initially farthest from the insulator will have:
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Correct option: C
a positive charge
Option C (a positive charge) is correct because the sphere farthest from the positively charged insulator experiences a deficiency of electrons after separation, resulting in a net positive charge.
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Reason:- At any point, there is only one direction of electric field. Statement-I: A positive point charge is brought in an electric field, the electric field at neary by point will increase
Statement-II: Electric field produced by charge may favour the existing electric filed Two particles having equal mass and charge
are separated by a distance The force(s) they
experience is (are) Statement-I: No 2 electric lines of force can intersect each other
Statement-II: tangent at any point of electric line of force gives the direction of electric field A force of is acting between two charges in air if the space between them is completely filled with glass , then the new force will be …… An electron is placed at centre of a conducting sphere of radius 0.2 metre having charge coulomb. The force of on the electron is ________ N