NEET Physics: Electric Charges and Fields — MCQ Test 8

Q6. A uniform electric field \( E = 3 \times 10^3 \, \text{N/C} \) is along the y-axis. What is the flux through a square of side 60 cm in the xz-plane?

Q7. A point charge \( -8 \, \mu\text{C} \) is at the origin. What is the electric field magnitude at a point 4 m along the z-axis?

Q8. Why does the electric field strength near a charged object increase as the density of field lines increases?

Q9. A thin spherical shell of radius 5 cm has \( q = 2 \, \mu\text{C} \). What is the electric field at 3 cm from the center?

Q10. Why is the electric field inside a conductor zero when it is placed in an external electric field?

NEET Physics — Electric Charges and Fields

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A charge of \( 13 \, \mu\text{C} \) is at the center of a cube of edge 50 cm. What is the flux through one face?

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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 Infinite, Electric, Magnitude, Midpoint, Spherical, and Irregular.

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 charge of \( 13 \, \mu\text{C} \) is at the center of a cube of edge 50 cm. What is the flux through one face?

  • A. \( 2.3 \times 10^5 \, \text{Nm}^2/\text{C} \)
  • B. \( 2.45 \times 10^5 \, \text{Nm}^2/\text{C} \)
  • C. \( 2.5 \times 10^5 \, \text{Nm}^2/\text{C} \)
  • D. \( 2.6 \times 10^5 \, \text{Nm}^2/\text{C} \)

Q2. An infinite line charge has \( \lambda = 6 \times 10^{-6} \, \text{C/m} \). What is the electric field at 12 cm?

  • A. \( 8.5 \times 10^5 \, \text{N/C} \)
  • B. \( 9.0 \times 10^5 \, \text{N/C} \)
  • C. \( 9.5 \times 10^5 \, \text{N/C} \)
  • D. \( 1.0 \times 10^6 \, \text{N/C} \)

Q3. Two charges \( +6 \, \mu\text{C} \) and \( -3 \, \mu\text{C} \) are 50 cm apart. What is the electric field magnitude at the midpoint?

  • A. \( 1.2 \times 10^6 \, \text{N/C} \)
  • B. \( 1.296 \times 10^6 \, \text{N/C} \)
  • C. \( 1.4 \times 10^6 \, \text{N/C} \)
  • D. \( 1.5 \times 10^6 \, \text{N/C} \)

Q4. Why does the electric field inside a charged spherical shell remain zero even if the shell is irregular but closed?

  • A. Charge quantization
  • B. Field symmetry
  • C. Charge mobility
  • D. No enclosed charge

Q5. A thin spherical shell of radius 6 cm has \( q = 5 \, \mu\text{C} \). What is the electric field at 8 cm from the center?

  • A. \( 6.5 \times 10^6 \, \text{N/C} \)
  • B. \( 6.8 \times 10^6 \, \text{N/C} \)
  • C. \( 7.0 \times 10^6 \, \text{N/C} \)
  • D. \( 7.03 \times 10^6 \, \text{N/C} \)

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