NEET Physics: Electrostatic Potential and Capacitance — MCQ Test 1

Q6. A dielectric slab is inserted into a parallel plate capacitor while maintaining a constant charge. Why does the potential difference between the plates increase if the slab is removed partially?

Q7. Two charges \( 28 \, \mu\text{C} \) and \( -14 \, \mu\text{C} \) are placed 28 cm apart. What is the potential energy of the system? (Take \( \frac{1}{4 \pi \varepsilon_0} = 9 \times 10^9 \, \text{Nm}^2 \text{C}^{-2} \)).

Q8. A spherical conductor of radius 2 cm has a charge of \( 2 \times 10^{-8} \, \text{C} \). What is the potential at its surface? (Take \( \frac{1}{4 \pi \varepsilon_0} = 9 \times 10^9 \, \text{Nm}^2 \text{C}^{-2} \)).

Q9. In a series combination of capacitors, why does each capacitor have the same charge but different potential differences?

Q10. Two charges \( 20 \, \mu\text{C} \) and \( -8 \, \mu\text{C} \) are placed 20 cm apart. What is the potential energy of the system? (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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Five capacitors of \( 10 \, \mu\text{F} \) each are in series. What is the equivalent capacitance?

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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 Capacitors, Equivalent, Capacitance, Parallel, Capacitor, and Separation.

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. Five capacitors of \( 10 \, \mu\text{F} \) each are in series. What is the equivalent capacitance?

  • A. 1 µF
  • B. 1.5 µF
  • C. 2.5 µF
  • D. 2 µF

Q2. A parallel plate capacitor has plates of area \( 0.08 \, \text{m}^2 \) and separation 0.4 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

Q3. A \( 4 \, \mu\text{F} \) capacitor is charged to \( 250 \, \text{V} \). What is the energy stored in it?

  • A. 0.1 J
  • B. 0.15 J
  • C. 0.125 J
  • D. 0.2 J

Q4. A spherical conductor of radius 12 cm has a charge of \( 3 \times 10^{-8} \, \text{C} \). What is the electric field at 30 cm from the center? (Take \( \frac{1}{4 \pi \varepsilon_0} = 9 \times 10^9 \, \text{Nm}^2 \text{C}^{-2} \)).

  • A. 2.5 × 10³ N/C
  • B. 3.5 × 10³ N/C
  • C. 3 × 10³ N/C
  • D. 4 × 10³ N/C

Q5. Why is the electric field inside a hollow conducting shell zero when no charges are present inside, regardless of the external field?

  • A. The shell absorbs the external field
  • B. No charges exist to create a field inside
  • C. The shell's inner surface cancels the external field
  • D. The shell's thickness prevents field penetration

+ 5 more questions in the actual test

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