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Physics 1 Marks Question

Gausss Law · Rajasthan Board (RBSE) STD 12 Science (Rajasthan - English Medium). 2 questions.

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2 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
A rubber balloon is given a charge Q distributed uniformly over its surface. Is the field inside the balloon zero everywhere if the balloon does not have a spherical surface?
Answer
No, the field is not zero everywhere, as the electric field vector due to the charge distribution does not cancel out at any place inside the balloon because of its non-spherical shape.
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Question 21 Mark
A point charge q is placed in a cavity in a metal block. If a charge Q is brought outside the metal, will the charge q feel an electric force?
Answer
Yes, the charge Q will feel an electric force, as the charge q given to the metal block appears on the surface. Hence, it exerts an electric force on the charge Q.
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