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JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES
1
Medium
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Analyzing
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Assertion : When we rub a glass rod with silk, the rod gets negatively charged and the silk gets positively charged.
Reason : On rubbing, electrons from silk cloth move to the glass rod.
Reason : On rubbing, electrons from silk cloth move to the glass rod.
View answer and explanation
Correct option: D
Both assertion and reason are false
Option D (Both assertion and reason are false) is correct because when a glass rod is rubbed with silk, the rod becomes positively charged and the silk becomes negatively charged due to electron transfer from the glass to the silk.
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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