The figure shows a current carrying loop having four segments \(1,\) \(2,\) \(3\) and \(4.\) The magnitude of the magnetic field at centre \(\mathrm{O}\) is maximum due to:
1. segment \(1\) 2. segment \(2\)
3. segment \(3\) 4. segment \(4\)
Subtopic:  Biot-Savart Law |
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The magnetic field near a current-carrying conductor is given by:
1. Coulomb's law 2. Lenz's law
3. Biot-Savart law 4. Kirchoff's law
Subtopic:  Biot-Savart Law |
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The strength of the magnetic field around a straight current-carrying conductor as observed by Biot and Savart was that:
1. field is the same every where around the conductor.
2. field is directly proportional to the square of the current flowing in the conductor.
3. field obeys the inverse square law of distance.
4. magnetic field strength was maximum on the axis of the current conductor.
Subtopic:  Biot-Savart Law |
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