Question

According to the Biot-Savart law, magnetic field dB due to current element idl, at a

pointP situated at distancer from the current element idl,is:

i) directly proportional to the current element idl,
ii) directly proportional to the sine

of the angle (θ) between current element and r, and
iii) inversely proportional to the

square of the distance r between current element and the point.


(i)To which law of electricity is the Biot Savart law of magnetism analogous to_____ .


(ii)Which is the equation of the magnetic field according to Biot-Savart’s law?

(a)IdIsinθ/r2

(b)(μ0/4π)IdIsinθ/r (c) (μ0/4π)IdIsinθ/r2

(d)(μ0/4π)IdIsinθ


(iii)Consider a circular conductor with 2m radius and 8 A current flowing through it.

What is the value of magnetic field intensity at the centre of the circular conductor?​

Answer 1

Answer:

1-Coulumbs law...

2-C

3- use IBlsin© then calculate

Answer 2

Answer:

according to biot savart's law formula of magnetic field is (c) no.