Question

Biot-Sawart law indicates that the moving electrons (velocity `overset(->)("v")`) produce a magnetic field B such that

Options

• `overset(->)("B") ⊥ overset(->)("v")`

• `overset(->)("B") || overset(->)("v")`

• It obeys inverse cube law.

• It is along the line joining the electron and point of observation.

Answer 1

`overset(->)("B") ⊥ overset(->)("v")`

Explanation - 

According to the Biot-Savart law, moving electrons (velocity `overset(->)("v")`) produce a magnetic field `overset(->)("B")` such that B ⊥ `overset(-)("v")`