MCQ
The magnetic field near a current carrying conductor is given by
  • A
    Coulomb’s law
  • B
    Lenz’ law
  • Biot-savart’s law
  • D
    Kirchoff’s law

Answer

Correct option: C.
Biot-savart’s law
c
The formula is $B=\frac{\mu_0}{4 \pi} I \frac{d \vec{l} \times \vec{r}}{r^3}$ It is Biot-sarvart's law

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