Practice Key Concepts (3.2) - Magnetic Effect of Current and Magnetism

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6 sample questions

Question 1.
What did Oersted demonstrate in his experiment?
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Think about the compass involvement.
Question 2.
What does the Biot-Savart law describe?
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Consider how we calculate fields from elements.
3Question 3.
What direction does the magnetic field point relative to current flow in a wire?
- Parallel to the wire
- Perpendicular to the wire
- Opposite to the current
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Think about the right-hand rule.
4Question 4.
The Biot-Savart Law helps determine magnetic fields produced by what?
- Current loops
- Charged particles
- Electric fields
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Reflect on how currents interact with magnetic fields.
Question 5.
A circular coil has a radius of 0.1 m carrying 5 A of current. Calculate the magnetic field at the center of the coil.
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Plug in values carefully to see the results.
Question 6.
Consider a long straight wire carrying 10 A. Calculate the magnetic field strength at a distance of 0.5 m from it.
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Breaking down the constants can help simplify your calculations.

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