Question

Derive the expression for the magnetic force acting on a current carrying straight conductor placed in a uniform magnetic field and express it in vector form.​

Answer 1

Explanation:

REF.Image

Vd= drift velocity of c

∘

Magnetic Lorents force

f

ˉ

=−e(

Vd

ˉ

×

B

ˉ

)

Total force

f

ˉ

=N

f

ˉ

=nAl[−e(

Vd

ˉ

×

B

ˉ

)]

=nAle(

Vd

ˉ

×

B

ˉ

)

I=nAeVd

F

ˉ

=I(

l

ˉ

×

B

ˉ

)=IlBsinθ

Maximum at θ=

2

π

f=IlB