NEET Physics: Electrostatic Potential and Capacitance — MCQ Test 2

Q6. In a parallel combination of capacitors, why does each capacitor have the same potential difference across its plates?

Q7. A positively charged particle moves from a point of higher potential to a point of lower potential in an electrostatic field. What is the sign of the work done by the electric field?

Q8. A parallel plate capacitor with capacitance \( 250 \, \text{pF} \) has a dielectric (\( K = 4 \), thickness \( d/7 \)) inserted. What is the new capacitance? (Original separation \( d \)).

Q9. Two hollow spherical conductors of different radii are charged with the same amount of charge and then connected by a thin conducting wire. What happens to the charges on the conductors?

Q10. A spherical conductor of radius 35 cm has a charge of \( 14 \times 10^{-8} \, \text{C} \). What is the electric field at 80 cm from the center? (Take \( \frac{1}{4 \pi \varepsilon_0} = 9 \times 10^9 \, \text{Nm}^2 \text{C}^{-2} \)).

NEET Physics — Electrostatic Potential and Capacitance

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In a system of two point charges of opposite signs placed close to each other, what can be said about the equipotential surface passing through the midpoint between them?

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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 Opposite, Equipotential, Midpoint, Capacitors, Parallel, and Capacitance.

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. In a system of two point charges of opposite signs placed close to each other, what can be said about the equipotential surface passing through the midpoint between them?

  • A. It is a spherical surface centered at one charge
  • B. It is a curved surface bending toward the negative charge
  • C. It is a plane perpendicular to the line joining the charges
  • D. It is a cylindrical surface around the charges

Q2. Two capacitors \( 10 \, \mu\text{F} \) and \( 20 \, \mu\text{F} \) are in parallel. What is the total capacitance?

  • A. 25 µF
  • B. 30 µF
  • C. 35 µF
  • D. 40 µF

Q3. A spherical conductor of radius 15 cm has a charge of \( 6 \times 10^{-8} \, \text{C} \). What is the electric field at 40 cm from the center? (Take \( \frac{1}{4 \pi \varepsilon_0} = 9 \times 10^9 \, \text{Nm}^2 \text{C}^{-2} \)).

  • A. 3 × 10³ N/C
  • B. 3.5 × 10³ N/C
  • C. 3.375 × 10³ N/C
  • D. 4 × 10³ N/C

Q4. A charge of \( 9 \, \mu\text{C} \) is moved from infinity to a point where the potential is \( 40 \, \text{V} \). What is the work done?

  • A. 0.36 mJ
  • B. 0.4 mJ
  • C. 0.3 mJ
  • D. 0.5 mJ

Q5. A \( 4 \, \mu\text{F} \) capacitor charged to \( 100 \, \text{V} \) is connected to an uncharged \( 4 \, \mu\text{F} \) capacitor. What is the final potential difference?

  • A. 40 V
  • B. 60 V
  • C. 50 V
  • D. 70 V

+ 5 more questions in the actual test

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