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Question: Answered & Verified by Expert
The magnetic field near a current carrying conductor is given by
PhysicsMagnetic Effects of CurrentJEE Main
Options:
  • A Coulomb's law
  • B Lenz' law
  • C Biot-savart's law
  • D Kirchoff's law
Solution:
2940 Upvotes Verified Answer
The correct answer is: Biot-savart's law
The formula is $B=\frac{\mu_o}{4 \pi} I \frac{\overrightarrow{d l} \times \vec{r}}{r^3}$
It is Biot-sarvart's law

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