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Biot-Savart's law states the relation between magnetic intensity and
- AFilament electric current only
- BSurface electric current only
- CVolume electric current only
- DAll the above are correct
Answer not set
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According to Biot-Savart’s law, the magnetic field at a point due to the incremental element of length dl carrying a current is given by
$(dB = \frac{{{\mu _0}Idl}}{{4\pi {r^2}}})$
Where B is a magnetic field in Tesla
I, is the current in the wire in Ampere
r is the radius of the wire in meter
From the above expression, it is clear that the magnetic field at a point due to the incremental element of length dl carrying a current is directly proportional to the current carried by the element.
Hence all of the above
$(dB = \frac{{{\mu _0}Idl}}{{4\pi {r^2}}})$
Where B is a magnetic field in Tesla
I, is the current in the wire in Ampere
r is the radius of the wire in meter
From the above expression, it is clear that the magnetic field at a point due to the incremental element of length dl carrying a current is directly proportional to the current carried by the element.
Hence all of the above