The correct answer is (c) 4W. The work done in rotating an electric dipole in a uniform electric field. Class 12th Science Physics NCERT MCQ Questions NCERT Books MCQ Questions Session 2024-2025.
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The work done in rotating a dipole in a uniform electric field is given by W = PE (cosθ₁ – cosθ₂). From 0° to 60°, work done is W = PE(1 – 1/2) = PE/2. From 0° to 180°, work ...
When a charge Q is supplied to a metallic conductor, it redistributes itself on the surface, making the electric field inside the conductor zero. This results in a constant electric potential throughout the conductor, including its surface. Hence, the correct ...
The energy stored in a condenser is proportional to the square of the potential. When the potential is doubled, the energy increases by a factor of four. Hence, the correct answer is 4 times, corresponding to option (b) 4. Class ...
(a) increases. When capacitors are connected in parallel, their total or equivalent capacitance is the sum of their individual capacitances. This increases the overall capacitance, allowing the system to store more charge at the same voltage. Class 12th Science Physics ...