Two uncharged insulated metal spheres, X and Y, are in contactwith each other. A

Question

Two uncharged insulated metal spheres, X and Y, are in contactwith each other. A positively charged rod R is brought close, butnot in contact with, sphere X. After this, Y is moved away from X.What are the final charge states of X and Y? (a) X is neutral and Y is neutral (b) X is positive and Y is neutral (c) X is neutral and Y is positive (d) X is negative and Y is positive Two uncharged insulated metal spheres, X and Y, are in contactwith each other. A positively charged rod R is brought close, butnot in contact with, sphere X. After this, Y is moved away from X.What are the final charge states of X and Y? (a) X is neutral and Y is neutral (b) X is positive and Y is neutral (c) X is neutral and Y is positive (d) X is negative and Y is positive

Explanation / Answer

    *    Due to electrostatic induction,unlike charge is induced at the nearer end of positively chargedrod i.e., in sphere X          and like charge isinduced at the farther end of the charged rod i.e., in sphereY.                          X   :   Negativecharge                   Y :   Positive charge     *   When Y is moved away from X, thenthe bodies X and Y obtain net charges as above.     *   Ans: Option (d) :   X isnegative and Y is positive

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