Question

Consider a closely wound 1000 turn coil,having radius of 1m.If a current of 10A passes through the coil,what will be the magnitude of the magnetic field at the center?​

Answer 1

Number of turns in the coil N=100

Radius of coil r=0.1 m

Current flowing in the coil I=1 A

Magnetic field at the center of the coil B=

2r

μ

o

IN

∴ B=

2×0.1

4π×10

−7

×1×100

⟹ B=6.28×10

−4

T

Answer 2

Explanation:

Number of turns in the coil N=100

Radius of coil r=0.1 m

Current flowing in the coil I=1 A

Magnetic field at the center of the coil B=

2r

μ

o

IN

∴ B=

2×0.1

4π×10

−7

×1×100

⟹ B=6.28×10

−4

T