Month: June 2025

11. What is the effect of a current on a nearby magnetic compass?

10. How does Ampère’s Law apply to the magnetic field of a current?

9. How is the Biot-Savart Law used to calculate the magnetic field of a current?

8. What is the difference between the magnetic fields of a straight wire and a loop?

7. How does the magnetic field behave for a circular current loop?

6. What happens to the magnetic field if the current is reversed?

5. How does the strength of the magnetic field vary with distance from the wire?

4. What is the mathematical expression for the magnetic field around a long straight conductor?

3. What rule is used to determine the direction of the magnetic field around a wire?

2. What is the direction of the magnetic field around a straight current-carrying wire?