The correct answer is (b) Quantisation of charge. Charge is always an integral multiple of the elementary charge e because charge exists in discrete packets carried by fundamental particles like electrons and protons. This is known as the quantisation of ...
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To determine the outgoing flux through the surface, we use Gauss’s Law, which states: Φ = Qenc/ε0 where Qenc is the total enclosed charge. Given charges: +5Q,−3Q,+2Q,−4Q Total enclosed charge: Qenc = 5Q−3Q+2Q−4Q = 0 Since the total enclosed charge ...
The correct answer is (d) On the outer surface of the sphere. In a conducting sphere, free charges redistribute themselves and reside only on the outer surface due to electrostatic repulsion, ensuring there is no electric field inside the conductor ...
The correct answer is (a) Attraction between unlike charges. Electric field lines contract longitudinally due to the attractive force between opposite charges, which pulls the field lines together, creating a tension-like effect along their length. Class 12th Science Physics NCERT ...
The correct answer is (c) Electric field. The electric field is a vector quantity because it has both magnitude and direction. In contrast, electric charge, electric flux, and electric potential are scalar quantities, having only magnitude. Class 12th Science Physics ...