STANDARD Physics Magnetic Flux MCQ Question
A square of side x m lies in the x-y plane in a region, where the magnetic field is given by B = B₀(3i + 4j + 5k)T, taking B₀ as constant. The magnitude of flux passing through the square is
5 B₀x² Wb
3 B₀x² Wb
2 B₀x² Wb
B₀x² Wb
Correct Answer
Detailed Explanation
The magnetic flux through the square is given by the dot product of the magnetic field and the area vector. Here, the area vector is perpendicular to the x-y plane, so it is along the k direction. The dot product B • A = B₀(3i + 4j + 5k) • x²k = 5 B₀x² Wb.
Found an issue with this question?
Related Questions
More from
What is the induced emf generated across a conductor moving with speed v in a magnetic field B known as?
What does Lenz's law state about the polarity of induced emf?
According to Faraday's laws, the induced emf in a circuit is proportional to which of the following?