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JEE PHYSICS MCQ: ELECTRIC FIELDS AND CHARGES
1
Medium
1 of 1
Analyzing
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Assertion(A): If a bob of a simple pendulum is kept in a horizontal electric field, its period of oscillation will remain same.
Reason(R): If bob is charged and kept in horizontal electric field, then the time period will be decreased.
Reason(R): If bob is charged and kept in horizontal electric field, then the time period will be decreased.
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Correct option: B
If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
Option B is correct because both the assertion and reason are correct statements, but the reason doesn't explain why the period remains the same when the bob is uncharged.
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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