NEET Physics: Electrostatic Potential and Capacitance — MCQ Test 21

Q6. A \( 2 \, \mu\text{F} \) capacitor charged to \( 200 \, \text{V} \) loses how much energy when connected to an uncharged \( 3 \, \mu\text{F} \) capacitor?

Q7. Three charges \( +10 \, \mu\text{C} \), \( -7 \, \mu\text{C} \), and \( +5 \, \mu\text{C} \) are at \( (0, 0, 0) \), \( (10, 0, 0) \), and \( (0, 10, 0) \, \text{m} \). What is the potential at \( (10, 10, 0) \, \text{m} \)? (Take \( \frac{1}{4 \pi \varepsilon_0} = 9 \times 10^9 \, \text{Nm}^2 \text{C}^{-2} \)).

Q8. Three capacitors \( 6 \, \text{pF} \), \( 12 \, \text{pF} \), and \( 4 \, \text{pF} \) are in series. What is the equivalent capacitance?

Q9. A \( 1 \, \mu\text{F} \) capacitor is charged to \( 400 \, \text{V} \). What is the energy stored in it?

Q10. When a dielectric slab is inserted between the plates of a charged parallel plate capacitor (disconnected from the battery), what happens to the energy stored in the capacitor?

NEET Physics — Electrostatic Potential and Capacitance

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A \( 8 \, \mu\text{F} \) capacitor is charged to \( 500 \, \text{V} \). What is the energy stored in it?

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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, Electric, Spherical, Linearly, Distance, and Dielectric.

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 \( 8 \, \mu\text{F} \) capacitor is charged to \( 500 \, \text{V} \). What is the energy stored in it?

  • A. 0.9 J
  • B. 1.1 J
  • C. 1 J
  • D. 1.2 J

Q2. Why does the electric field inside a charged spherical shell vary linearly with distance from the center when a uniform dielectric fills the interior?

  • A. Due to the dielectric's polarization
  • B. Due to the field's inverse square law
  • C. Due to the shell's non-uniform charge
  • D. It does not vary, field is zero inside

Q3. Why does the potential energy of a system of two charges depend only on their separation and not on their orientation in space?

  • A. Due to the charges' alignment with the field
  • B. Due to the field's directional dependence
  • C. Due to the charges' orbital motion
  • D. Due to the isotropic nature of Coulomb's law

Q4. Two charges \( 6 \, \mu\text{C} \) and \( -3 \, \mu\text{C} \) are at \( (10, 0, 0) \) and \( (-10, 0, 0) \, \text{cm} \). What is the potential at midpoint? (Take \( \frac{1}{4 \pi \varepsilon_0} = 9 \times 10^9 \, \text{Nm}^2 \text{C}^{-2} \)).

  • A. 2 × 10⁵ V
  • B. 2.5 × 10⁵ V
  • C. 3 × 10⁵ V
  • D. 2.7 × 10⁵ V

Q5. Three capacitors \( 8 \, \text{pF} \), \( 16 \, \text{pF} \), and \( 32 \, \text{pF} \) are in parallel. What is the total capacitance?

  • A. 50 pF
  • B. 60 pF
  • C. 56 pF
  • D. 64 pF

+ 5 more questions in the actual test

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