NEET Physics: Electrostatic Potential and Capacitance — MCQ Test 19

Q6. A dipole \( p = 10 \times 10^{-9} \, \text{C m} \) is rotated from \( \theta = 0^\circ \) to \( 90^\circ \) in a field \( E = 4 \times 10^5 \, \text{N/C} \). What is the work done?

Q7. Why does the electric field inside a uniformly charged spherical shell vary linearly with distance from the center if a point charge is placed at the center?

Q8. A dipole \( p = 5 \times 10^{-9} \, \text{C m} \) is rotated from \( \theta = 90^\circ \) to \( 180^\circ \) in a field \( E = 2 \times 10^5 \, \text{N/C} \). What is the work done?

Q9. Four capacitors of \( 20 \, \mu\text{F} \) each are in series. What is the equivalent capacitance?

Q10. A \( 4 \, \mu\text{F} \) capacitor is charged to \( 50 \, \text{V} \) and then connected to an uncharged \( 2 \, \mu\text{F} \) capacitor. What is the final energy?

NEET Physics — Electrostatic Potential and Capacitance

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A \( 14 \, \mu\text{F} \) capacitor charged to \( 20 \, \text{V} \) is connected to an uncharged \( 14 \, \mu\text{F} \) capacitor. What is the final potential difference?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Electrostatic Potential and Capacitance. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Capacitor, Connected, Uncharged, Potential, Difference, and Parallel.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. A \( 14 \, \mu\text{F} \) capacitor charged to \( 20 \, \text{V} \) is connected to an uncharged \( 14 \, \mu\text{F} \) capacitor. What is the final potential difference?

  • A. 5 V
  • B. 15 V
  • C. 10 V
  • D. 20 V

Q2. A \( 5 \, \mu\text{F} \) capacitor charged to \( 120 \, \text{V} \) is connected to an uncharged \( 15 \, \mu\text{F} \) capacitor. What is the energy lost?

  • A. 0.02 J
  • B. 0.025 J
  • C. 0.03 J
  • D. 0.027 J

Q3. A parallel plate capacitor has plates of area \( 0.07 \, \text{m}^2 \) and separation 0.35 mm in air. What is its capacitance? (Take \( \varepsilon_0 = 8.85 \times 10^{-12} \, \text{C}^2 \text{N}^{-1} \text{m}^{-2} \)).

  • A. 1770 pF
  • B. 1500 pF
  • C. 2000 pF
  • D. 1000 pF

Q4. A parallel plate capacitor with \( C = 20 \, \text{pF} \) in air has a dielectric (\( K = 3 \)) inserted fully between plates. What is the new capacitance?

  • A. 40 pF
  • B. 60 pF
  • C. 80 pF
  • D. 100 pF

Q5. In a system where a charged particle moves along a curved path between two points with different potentials, what can be inferred about the work done by the electric field?

  • A. It depends on the length of the path
  • B. It varies with the curvature of the path
  • C. It depends only on the potential difference
  • D. It is zero due to the curved trajectory

+ 5 more questions in the actual test

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