Magnetic Flux Density (Leaving Cert Physics): Quizzes

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Magnetic Flux Density
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What is the magnitude of magnetic flux density at a point in a magnetic field?

Force on 1m conductor with 1A at right angles

What symbol represents magnetic flux density?

BB

What type of quantity is magnetic flux density?

Vector quantity

What determines the direction of magnetic flux density?

Force direction on a north magnetic pole

What is the SI unit for magnetic flux density?

Tesla

What is the magnetic flux density when a 1m conductor with 1A experiences 1N force perpendicularly?

1 tesla

What is the formula for force on a conductor in a magnetic field?

F=BILF = BIL

What is the formula to calculate magnetic flux density from force, current, and length?

B=FILB = \frac{F}{IL}

A 3m wire with 2A experiences 12N force. What is the magnetic flux density?

2 T

A 0.4m conductor with 3A in a 5.2T field experiences what force?

6.24 N

What are the base SI units for tesla?

kg⋅s−2⋅A−1\text{kg} \cdot \text{s}^{-2} \cdot \text{A}^{-1}

What principle do forces on current loops in magnetic fields demonstrate?

The basic principle of electric motors

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