We have a fixed conductor having a cavity inside. There is a point charge q_(1) kept inside the cavity charge appearing at the inner surface of the cavity is q_(2). Charge appearing at outer surface of conductor is q_(3) and there lies another point charge q_(4) out side the conductor. Whole situation is shown in figure. q_(4). is held stationary by applying an external force vecF_(0) on it. Three points A, B and C are shown. Answer the following two questions. Q. If keeping the nature and position of q_(1) fixed, magnitude of q_(1) is changed, then choose the INCORRECT options(s)

We have a fixed conductor having a cavity inside. There is a point c

1.	We have a fixed conductor having a cavity inside. There is a point charge q_(1) kept inside the cavity charge appearing at the inner surface of the cavity is q_(2). Charge appearing at outer surface of conductor is q_(3) and there lies another point charge q_(4) out side the conductor. Whole situation is shown in figure. q_(4). is held stationary by applying an external force vecF_(0) on it. Three points A, B and C are shown. Answer the following two questions. Q. If keeping the nature and position of q_(1) fixed, magnitude of q_(1) is changed, then choose the INCORRECT options(s)
Answer» External force REQUIRED to KEEP `q_(4)` stationary remains unchanged intensity of electric field at point C remains unchanged intensity of electric field at point B remains unchanged intensity of electric filed point B only due to `q_(2)` remains unchanged. Solution :Answers are obvious using PROPERTIES of conductor.

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