The internal resistance of the cell is 0.5 Ω, calculated using Ohm’s law by equating EMF expressions for both resistor cases. Correct answer: (d). Class 12th Science Physics NCERT MCQ Questions NCERT Books MCQ Questions Session 2024-2025.
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The Wheatstone bridge is balanced since all four arms have equal resistance R. The galvanometer arm also has resistance R. The equivalent resistance of the entire network simplifies to R, using series-parallel reduction. Hence, the correct answer is (a) R.
Since the conductor has a nonzero potential and there are no external charges, there must be charges present to maintain this potential. In electrostatic equilibrium, any excess charge on a conductor resides only on the surface, as the electric field ...
Preparing for Class 10 Maths Chapter 1 MCQ is crucial for board exams. Students can practice Real Numbers Class 10 MCQ with Answers from NCERT Class 10 Maths Chapter 1 MCQ PDFs available online. Platforms offer CBSE Class 10 Maths ...
The correct answers are (b) and (c). In a region of constant potential, the electric field is zero because the electric field is the negative gradient of potential. Since potential is constant, its gradient is zero. Also, there can be ...