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Class 12 Physics Practice Test: Magnetic Field due to a Current Element - Biot-Savart Law
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The Biot–Savart law is an equation describing the magnetic field generated by a constant electric current. It relates the magnetic field to the magnitude, direction, length, and proximity of the electric current.

Class 12 Physics Practice Test: Magnetic Field due to a Current Element - Biot-Savart Law
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7 Questions

1. The magnetic field due to a current element is minimum in a plane passing through the element when it is perpendicular to its axis. State true or false.
2. The magnetic field due to a current element is minimum in a plane passing through the element when it is perpendicular to its axis. State true or false.
3. Give the SI unit of the magnetic field from Biot-Savart law.
4. State the rule that is used to find the direction of field acting at a point near a current-carrying straight conductor.
5. Which of the following is not a point of similarity between Biot-Savart law and Coulomb’s law.
6. A wire placed along the north-south direction carries a current of 8 A from south to north. Find the magnetic field due to a 1 cm piece of wire at a point 200 cm north-east from the piece.
7. Which of the following is not a point of similarity between Biot-Savart law and Coulomb’s law.

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