NEET Physics: Electric Charges and Fields — MCQ Test 13

Q6. What fundamental principle allows the electric field due to multiple charges to be calculated as the vector sum of the fields due to each charge individually?

Q7. Why does the electric field due to a uniformly charged infinite plane sheet remain constant with distance from the sheet?

Q8. Two point charges \( 9 \times 10^{-7} \, \text{C} \) and \( -3 \times 10^{-7} \, \text{C} \) are 100 cm apart in vacuum. What is the magnitude of the force between them?

Q9. A thin spherical shell of radius 17 cm has \( q = 13 \, \mu\text{C} \). What is the electric field at 20 cm from the center?

Q10. A dipole with \( p = 4 \times 10^{-9} \, \text{C m} \) is at 30° to a field \( E = 6 \times 10^4 \, \text{N/C} \). What is the torque?

NEET Physics — Electric Charges and Fields

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What explains why the electric field outside a neutral object can be non-zero when placed in an external field?

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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 Electric Charges and Fields. 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 Explains, Electric, External, Spherical, Conducting, and Fundamental.

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. What explains why the electric field outside a neutral object can be non-zero when placed in an external field?

  • A. Charge quantization
  • B. Field cancellation
  • C. Charge symmetry
  • D. Induced charge separation

Q2. A thin spherical shell of radius 25 cm has a charge of \( 15 \, \mu\text{C} \). What is the electric field at a point 30 cm from the center?

  • A. \( 1.5 \times 10^6 \, \text{N/C} \)
  • B. \( 1.8 \times 10^6 \, \text{N/C} \)
  • C. \( 2.0 \times 10^6 \, \text{N/C} \)
  • D. \( 2.2 \times 10^6 \, \text{N/C} \)

Q3. A uniform electric field \( E = 5 \times 10^3 \, \text{N/C} \) is along the y-axis. What is the flux through a square of side 40 cm in the xz-plane?

  • A. \( 800 \, \text{Nm}^2/\text{C} \)
  • B. \( 850 \, \text{Nm}^2/\text{C} \)
  • C. \( 900 \, \text{Nm}^2/\text{C} \)
  • D. \( 950 \, \text{Nm}^2/\text{C} \)

Q4. A conducting sphere of radius 19 cm has an electric field of \( 3 \times 10^3 \, \text{N/C} \) at 38 cm from its center. What is the charge?

  • A. \( 4.5 \times 10^{-8} \, \text{C} \)
  • B. \( 4.7 \times 10^{-8} \, \text{C} \)
  • C. \( 4.8 \times 10^{-8} \, \text{C} \)
  • D. \( 4.81 \times 10^{-8} \, \text{C} \)

Q5. A thin spherical shell of radius 14 cm has a charge of \( 7 \, \mu\text{C} \). What is the electric field at a point 16 cm from the center?

  • A. \( 2.46 \times 10^6 \, \text{N/C} \)
  • B. \( 2.5 \times 10^6 \, \text{N/C} \)
  • C. \( 2.7 \times 10^6 \, \text{N/C} \)
  • D. \( 3.0 \times 10^6 \, \text{N/C} \)

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