NEET Physics: Electric Charges and Fields — MCQ Test 9

Q6. An infinite line charge has \( \lambda = 3 \times 10^{-6} \, \text{C/m} \). What is the electric field at 15 cm?

Q7. What property of electric charges allows them to be treated as scalars despite their ability to attract or repel?

Q8. Two charges \( +2 \, \mu\text{C} \) and \( +3 \, \mu\text{C} \) are 10 cm apart. What is the electric field at a point 5 cm from \( +2 \, \mu\text{C} \) along the line joining them?

Q9. A point charge \( -6 \, \mu\text{C} \) is at the origin. What is the electric field magnitude at a point 3 m along the y-axis?

Q10. A uniform electric field \( E = 8 \times 10^3 \, \text{N/C} \) is along the y-axis. What is the flux through a rectangle of 20 cm × 60 cm in the xz-plane?

NEET Physics — Electric Charges and Fields

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A thin spherical shell of radius 8 cm has \( q = 4 \, \mu\text{C} \). What is the electric field at 6 cm from the center?

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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 Spherical, Electric, Negative, Terminate, Infinity, and Magnitude.

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 thin spherical shell of radius 8 cm has \( q = 4 \, \mu\text{C} \). What is the electric field at 6 cm from the center?

  • A. \( 1.0 \times 10^6 \, \text{N/C} \)
  • B. \( 0.8 \times 10^6 \, \text{N/C} \)
  • C. \( 0 \, \text{N/C} \)
  • D. \( 0.5 \times 10^6 \, \text{N/C} \)

Q2. What ensures that the electric field lines from a negative charge always terminate on it rather than extend to infinity?

  • A. Charge quantization
  • B. Field symmetry
  • C. Charge density
  • D. Attraction

Q3. A thin spherical shell of radius 12 cm has a total charge of \( 9 \, \mu\text{C} \). What is the electric field at 15 cm from the center?

  • A. \( 3.6 \times 10^6 \, \text{N/C} \)
  • B. \( 4.0 \times 10^6 \, \text{N/C} \)
  • C. \( 4.5 \times 10^6 \, \text{N/C} \)
  • D. \( 5.0 \times 10^6 \, \text{N/C} \)

Q4. A point charge \( 12 \, \mu\text{C} \) is at the origin. What is the electric field magnitude at a point 8 m along the x-axis?

  • A. \( 1.69 \times 10^3 \, \text{N/C} \)
  • B. \( 1.8 \times 10^3 \, \text{N/C} \)
  • C. \( 2.0 \times 10^3 \, \text{N/C} \)
  • D. \( 2.2 \times 10^3 \, \text{N/C} \)

Q5. A conducting sphere of radius 17 cm has a surface charge density of \( 15 \, \mu\text{C/m}^2 \). What is the total charge?

  • A. \( 5.0 \times 10^{-6} \, \text{C} \)
  • B. \( 5.2 \times 10^{-6} \, \text{C} \)
  • C. \( 5.45 \times 10^{-6} \, \text{C} \)
  • D. \( 5.6 \times 10^{-6} \, \text{C} \)

+ 5 more questions in the actual test

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