Free Magnetic Flux MCQs with Answers
30 Magnetic Flux MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Magnetic flux measures the magnetic field passing through a surface, calculated for a uniform field as Φ = BA cos θ, where θ is the angle between the field and the surface normal. Questions involve area, field strength and orientation, the weber as its unit, and the distinction between flux and magnetic field.
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30 questions · page 2 of 2
- A. Conductance
- B. Megnetic flux
- C. Electric current
- D. Elrctric flux
Explanation: The explanation of this question will be added soon!
Correct answer: Megnetic flux- A. NBA
- B. BA
- C. ½ NBA
- D. BAcos(θ)
Explanation: In this scenario we have to find the magnetic flux linkage. Since we already have the solenoid's wire being perpendicular to the field…
Correct answer: NBA- A. 360°
- B. 180°
- C. 90°
- D. 45°
Explanation: The magnetic flux is equal to the magnetic field strength times the area through which the field lines pass times the angle between the…
Correct answer: 360°- A. Circular
- B. Rectangular
- C. Square
- D. Flux is independent of shape
Explanation: The magnetic flux through a surface depends on the magnetic field strength and the angle between the magnetic field lines and the surface.
Correct answer: Flux is independent of shape- A. Electric flux
- B. Magnetic flux
- C. Electric flux density
- D. Gravitational flux
Explanation: Magnetic flux is a measure of the total magnetic field passing through a given area.
Correct answer: Magnetic flux- A. NmA-1
- B. Nm2 A-1
- C. NAm-¹
- D. NmA-2
Explanation: The unit of magnetic flux is Weber, which is equal to J/A, which is then equal to Nm/A-1.
Correct answer: NmA-1- A. gauss
- B. weber
- C. henry
- D. tesla
Explanation: Henry is the unit of inductance, which is equal to 1 volt*sec/ampere, which is the voltage across a conductor directly proportional to the…
Correct answer: henry- A. μ0N2AL
- B. μ0N2 A/L
- C. μ0N2L/A
- D. μ0NL/A
Explanation: The formula for self-inductance of a solenoid is L=μoN2A/L
Correct answer: μ0N2 A/L- A. Resistance
- B. Conductance
- C. Inductance
- D. Capacitance
Explanation: The reluctance of a ferromagnetic material is similar to the resistance of a conductor.
Correct answer: Resistance- A. Electric potential
- B. Electric intensity
- C. Magnetic intensity
- D. Magnetic flux
Explanation: The weber (Wb) is the unit of magnetic flux, which is a measure of the amount of magnetic field that passes through a given area.
Correct answer: Magnetic flux