Question

A large metal sheet carries an electric current along its surface. Current per unit length is . Magnetic field near the metal sheet is

Answer 1

Answer:

Magnetic field near the metal sheet is μ0λ/2

Explanation:

According to the problem the the metal sheet carries an electric current.

let the current per unit length is λ , B is the magnetic field.

Now we need to start an ampere’s loop of small width and length l.

Therefore,

2Bl=μ0(λl)

or, B=μ0λ/2

Hence the magnetic field near the metal sheet is μ0λ/2