PHYSICS TEST MCQ
B.Sc lll SEMESTER #TEST UNIT II
MAGNETO STATICS
Magneto Statics MCQ questions for (link unavailable) III Semester Physics:
1. The magnetic field inside a solenoid is:
A) Directly proportional to the current
B) Inversely proportional to the current
C) Constant and independent of current
D) Zero
2. Which of the following is a property of magnetic lines of force?
A) They intersect each other
B) They are always closed loops
C) They emerge from the south pole
D) They are always parallel to each other
3. The unit of magnetic flux density is:
A) Tesla
B) Weber
C) Gauss
D) Oersted
4. The magnetic moment of a current-carrying loop is:
A) Directly proportional to the area of the loop
B) Inversely proportional to the area of the loop
C) Directly proportional to the current
D) Inversely proportional to the current
5. The magnetic field at the center of a circular coil is:
A) Directly proportional to the radius
B) Inversely proportional to the radius
C) Independent of the radius
D) Zero
6. Ampere's law relates:
A) Electric field and current
B) Magnetic field and current
C) Electric potential and current
D) Magnetic flux and current
7. The Biot-Savart law is used to calculate:
A) Magnetic field due to a current element
B) Electric field due to a charge
C) Magnetic flux through a coil
D) Electric potential due to a charge
8. Which of the following materials is ferromagnetic?
A) Copper
B) Aluminum
C) Iron
D) Glass
Ampere's Law
9. Ampere's Law states that the line integral of the magnetic field around a closed loop is proportional to the:
A) Electric current passing through the loop
B) Magnetic flux passing through the loop
C) Permeability of the medium
D) Resistance of the loop
10. The Ampere's Law equation is:
A) ∮B⋅dl = μ₀I
B) ∮B⋅dl = μ₀I / 2
C) ∮B⋅dl = μ₀ / I
D) ∮B⋅dl = 0
11. Ampere's Law applies to:
A) Open circuits
B) Closed circuits
C) Both open and closed circuits
D) Neither open nor closed circuits
12. The constant of proportionality in Ampere's Law is:
A) Permeability of free space (μ₀)
B) Permittivity of free space (ε₀)
C) Speed of light (c)
D) Gravitational constant (G)
13. Ampere's Law is used to calculate:
A) Magnetic field due to a current-carrying wire
B) Electric field due to a charge
C) Magnetic flux through a coil
D) Electric potential due to a charge
Here are some Magnetic Fields MCQ questions for (link unavailable) III Semester Physics:
14. The magnetic field produced by a current-carrying wire is:
A) Directly proportional to the current
B) Inversely proportional to the current
C) Independent of the current
D) Zero
15. The direction of the magnetic field around a current-carrying wire is:
A) Parallel to the wire
B) Perpendicular to the wire
C) Circular around the wire
D) Radial from the wire
16. The unit of magnetic field is:
A) Tesla
B) Gauss
C) Weber
D) Oersted
17. The magnetic field at the center of a circular coil is:
A) Directly proportional to the radius
B) Inversely proportional to the radius
C) Independent of the radius
D) Zero
18. The magnetic field produced by a solenoid is:
A) Uniform and axial
B) Non-uniform and radial
C) Uniform and radial
D) Non-uniform and axial
19. The magnetic moment of a current-carrying loop is:
A) Directly proportional to the area of the loop
B) Inversely proportional to the area of the loop
C) Directly proportional to the current
D) Inversely proportional to the current
20. The magnetic field produced by a bar magnet is:
A) Uniform and axial
B) Non-uniform and radial
C) Uniform and radial
D) Non-uniform and axial
21. The force experienced by a charged particle in a magnetic field is:
A) Electric force
B) Magnetic force
C) Gravitational force
D) Frictional force
22. The magnetic field produced by a toroid is:
A) Uniform and axial
B) Non-uniform and radial
C) Uniform and radial
D) Non-uniform and axial