AllInfoHub – MCQ Practice

Electromagnetics – Multiple Choice Questions (MCQs)

1. Which law states that the line integral of the magnetic field H around a closed path is equal to the total current enclosed by the path?
- A. Faraday's Law
- B. Ampere's Law
- C. Gauss's Law for Magnetism
- D. Biot-Savart Law
2. The electric field E and magnetic field H in a uniform plane wave are:
- A. Parallel
- B. Perpendicular
- C. At 45 degrees
- D. Opposite
3. What is the unit of magnetic flux density?
- A. Tesla
- B. Weber
- C. Henry
- D. Farad
4. Permeability is a measure of a material's ability to:
- A. Store electric energy
- B. Conduct electricity
- C. Support the formation of a magnetic field
- D. Resist the flow of current
5. The speed of an electromagnetic wave in a vacuum is given by:
- A. c = 1/sqrt(μ₀ε₀)
- B. c = sqrt(μ₀ε₀)
- C. c = μ₀ε₀
- D. c = 1/(μ₀ε₀)
6. Which of Maxwell's equations is a statement of Gauss's Law for electric fields?
- A. ∇ ⋅ D = ρv
- B. ∇ ⋅ B = 0
- C. ∇ × E = -∂B/∂t
- D. ∇ × H = J + ∂D/∂t
7. The skin depth of a good conductor increases with:
- A. Increase in frequency
- B. Decrease in conductivity
- C. Decrease in permeability
- D. Decrease in frequency and conductivity
8. Poynting vector represents:
- A. Energy flow per unit area per unit time
- B. Power per unit volume
- C. Electric field intensity
- D. Magnetic field intensity
9. Which material exhibits a magnetic susceptibility that is small and positive?
- A. Diamagnetic
- B. Paramagnetic
- C. Ferromagnetic
- D. Antiferromagnetic
10. The capacitance of a parallel plate capacitor is directly proportional to the:
- A. Distance between plates
- B. Area of plates
- C. Dielectric strength
- D. Applied voltage
11. The term 'displacement current' was introduced by:
- A. Faraday
- B. Ampere
- C. Maxwell
- D. Gauss
12. The magnetic field produced by a current-carrying wire is given by:
- A. Gauss's Law
- B. Faraday's Law
- C. Biot-Savart Law
- D. Ampere's Law

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Electromagnetics – Multiple Choice Questions (MCQs)

1. Which law states that the line integral of the magnetic field H around a closed path is equal to the total current enclosed by the path?

2. The electric field E and magnetic field H in a uniform plane wave are:

3. What is the unit of magnetic flux density?

4. Permeability is a measure of a material's ability to:

5. The speed of an electromagnetic wave in a vacuum is given by:

6. Which of Maxwell's equations is a statement of Gauss's Law for electric fields?

7. The skin depth of a good conductor increases with:

8. Poynting vector represents:

9. Which material exhibits a magnetic susceptibility that is small and positive?

10. The capacitance of a parallel plate capacitor is directly proportional to the:

11. The term 'displacement current' was introduced by:

12. The magnetic field produced by a current-carrying wire is given by:

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